/**
 * Copyright 2010-2013 The Kuali Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.opensource.org/licenses/ecl2.php
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kuali.common.util.spring;

import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import org.codehaus.plexus.util.StringUtils;
import org.kuali.common.util.Assert;
import org.kuali.common.util.CollectionUtils;
import org.kuali.common.util.FormatUtils;
import org.kuali.common.util.LocationUtils;
import org.kuali.common.util.Mode;
import org.kuali.common.util.PropertyUtils;
import org.kuali.common.util.ReflectionUtils;
import org.kuali.common.util.execute.Executable;
import org.kuali.common.util.log.LoggerLevel;
import org.kuali.common.util.log.LoggerUtils;
import org.kuali.common.util.nullify.NullUtils;
import org.kuali.common.util.property.Constants;
import org.kuali.common.util.property.PropertiesContext;
import org.kuali.common.util.spring.env.EnvironmentService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.BeanFactoryUtils;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.GenericXmlApplicationContext;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.EnumerablePropertySource;
import org.springframework.core.env.Environment;
import org.springframework.core.env.PropertiesPropertySource;
import org.springframework.core.env.PropertySource;

import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;

public class SpringUtils {

        private static final Logger logger = LoggerFactory.getLogger(SpringUtils.class);

        private static final String GLOBAL_SPRING_PROPERTY_SOURCE_NAME = "springPropertySource";

        public static <T> T getProperty(Optional<EnvironmentService> env, List<String> keys, Class<T> type, T provided) {
                return getProperty(env, keys, type, Optional.fromNullable(provided)).orNull();
        }

        public static <T> Optional<T> getProperty(Optional<EnvironmentService> env, String key, Class<T> type, Optional<T> provided) {
                return getProperty(env, ImmutableList.of(key), type, provided);
        }

        public static <T> Optional<T> getProperty(Optional<EnvironmentService> env, List<String> keys, Class<T> type, Optional<T> provided) {
                if (!env.isPresent()) {
                        return provided;
                }
                for (String key : keys) {
                        Optional<T> value = getOptionalProperty(env.get(), key, type);
                        if (value.isPresent()) {
                                return value;
                        }
                }
                return provided;
        }

        public static Optional<String> getString(Optional<EnvironmentService> env, List<String> keys, Optional<String> provided) {
                if (!env.isPresent()) {
                        return provided;
                }
                for (String key : keys) {
                        Optional<String> value = getOptionalString(env.get(), key);
                        if (value.isPresent()) {
                                return value;
                        }
                }
                return provided;
        }

        public static String getString(EnvironmentService env, List<String> keys) {
                return getString(Optional.of(env), keys, Optional.<String> absent()).get();
        }

        public static Optional<String> getString(EnvironmentService env, List<String> keys, Optional<String> provided) {
                return getString(Optional.of(env), keys, provided);
        }

        public static Optional<String> getString(EnvironmentService env, String key, Optional<String> provided) {
                return getString(env, ImmutableList.of(key), provided);
        }

        public static Optional<Boolean> getBoolean(EnvironmentService env, String key, Optional<Boolean> provided) {
                Optional<Boolean> value = getOptionalBoolean(env, key);
                if (value.isPresent()) {
                        return value;
                } else {
                        return provided;
                }
        }

        public static Optional<Integer> getInteger(EnvironmentService env, String key, Optional<Integer> provided) {
                Optional<Integer> value = getOptionalInteger(env, key);
                if (value.isPresent()) {
                        return value;
                } else {
                        return provided;
                }
        }

        public static Optional<Integer> getOptionalInteger(EnvironmentService env, String key) {
                if (!env.containsProperty(key)) {
                        return Optional.absent();
                } else {
                        return Optional.of(env.getInteger(key));
                }
        }

        /**
         * If there is no value for <code>key</code> return Optional.absent(), otherwise return Optional.of(value)
         */
        public static <T> Optional<T> getOptionalProperty(EnvironmentService env, List<String> keys, Class<T> type) {
                for (String key : keys) {
                        Optional<T> value = getOptionalProperty(env, key, type);
                        if (value.isPresent()) {
                                return value;
                        }
                }
                return Optional.absent();
        }

        /**
         * If there is no value for <code>key</code> return Optional.absent(), otherwise return Optional.of(value)
         */
        public static <T> Optional<T> getOptionalProperty(EnvironmentService env, String key, Class<T> type) {
                if (!env.containsProperty(key)) {
                        return Optional.absent();
                } else {
                        T value = env.getProperty(key, type);
                        return Optional.of(value);
                }
        }

        /**
         * If there is no value for <code>key</code> or the value is NULL or NONE, return Optional.absent(), otherwise return Optional.of(value)
         */
        public static Optional<String> getOptionalString(EnvironmentService env, String key) {
                if (!env.containsProperty(key)) {
                        return Optional.absent();
                } else {
                        return NullUtils.toAbsent(env.getString(key));
                }
        }

        public static Optional<Boolean> getOptionalBoolean(EnvironmentService env, String key) {
                if (!env.containsProperty(key)) {
                        return Optional.absent();
                } else {
                        return Optional.of(env.getBoolean(key));
                }
        }

        @Deprecated
        public static org.kuali.common.util.service.SpringContext getSpringContext(List<Class<?>> annotatedClasses, org.kuali.common.util.ProjectContext project,
                        List<org.kuali.common.util.ProjectContext> others) {
                // This PropertySource object is backed by a set of properties that has been
                // 1 - fully resolved
                // 2 - contains all properties needed by Spring
                // 3 - contains system/environment properties where system/env properties override loaded properties
                PropertySource<?> source = getGlobalPropertySource(project, others);

                // Setup a property source context such that our single property source is the only one registered with Spring
                // This will make it so our PropertySource is the ONLY thing used to resolve placeholders
                org.kuali.common.util.service.PropertySourceContext psc = new org.kuali.common.util.service.PropertySourceContext(source, true);

                // Setup a Spring context
                org.kuali.common.util.service.SpringContext context = new org.kuali.common.util.service.SpringContext();

                // Supply Spring with our PropertySource
                context.setPropertySourceContext(psc);

                // Supply Spring with java classes containing annotated config
                context.setAnnotatedClasses(annotatedClasses);

                // Return a Spring context configured with a single property source
                return context;
        }

        @Deprecated
        public static org.kuali.common.util.service.SpringContext getSpringContext(Class<?> annotatedClass, org.kuali.common.util.ProjectContext project,
                        List<org.kuali.common.util.ProjectContext> others) {
                return getSpringContext(CollectionUtils.asList(annotatedClass), project, others);
        }

        /**
         * 
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext project, org.kuali.common.util.ProjectContext other) {
                return getGlobalPropertySource(project, Arrays.asList(other));
        }

        /**
         * 
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext project, List<org.kuali.common.util.ProjectContext> others) {
                return getGlobalPropertySource(project, others, null);
        }

        /**
         * 
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext project, Mode missingLocationsMode) {
                return getGlobalPropertySource(project, missingLocationsMode, Collections.<org.kuali.common.util.ProjectContext> emptyList());
        }

        /**
         * 
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext project, Mode missingLocationsMode, org.kuali.common.util.ProjectContext... others) {
                return getGlobalPropertySource(project, missingLocationsMode, Arrays.asList(others));
        }

        /**
         * 
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext project, Mode missingLocationsMode,
                        List<org.kuali.common.util.ProjectContext> others) {
                org.kuali.common.util.property.ProjectProperties pp = ConfigUtils.getProjectProperties(project);
                pp.getPropertiesContext().setMissingLocationsMode(missingLocationsMode);
                return getGlobalPropertySource(pp, others, null);
        }

        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.property.ProjectProperties projectProperties, List<org.kuali.common.util.ProjectContext> others,
                        Properties properties) {
                ConfigUtils.combine(projectProperties, properties);
                List<org.kuali.common.util.property.ProjectProperties> otherProjectProperties = ConfigUtils.getProjectProperties(others);
                // Get a PropertySource object backed by the properties loaded from the list as well as system/environment properties
                return getGlobalPropertySource(projectProperties, otherProjectProperties);
        }

        /**
         * <code>project</code> needs to be a top level project eg rice-sampleapp, olefs-webapp. <code>others</code> is projects for submodules organized into a list where the last one
         * in wins.
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext project, List<org.kuali.common.util.ProjectContext> others, Properties properties) {

                org.kuali.common.util.property.ProjectProperties projectProperties = ConfigUtils.getProjectProperties(project, properties);

                List<org.kuali.common.util.property.ProjectProperties> otherProjectProperties = ConfigUtils.getProjectProperties(others);

                // Get a PropertySource object backed by the properties loaded from the list as well as system/environment properties
                return getGlobalPropertySource(projectProperties, otherProjectProperties);
        }

        /**
         * <code>project</code> needs to be a top level project eg rice-sampleapp, olefs-webapp. <code>others</code> is projects for submodules organized into a list where the last one
         * in wins.
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.property.ProjectProperties project) {
                return getGlobalPropertySource(project, null);
        }

        /**
         * <code>project</code> needs to be a top level project eg rice-sampleapp, olefs-webapp. <code>others</code> is projects for submodules organized into a list where the last one
         * in wins.
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.property.ProjectProperties project, List<org.kuali.common.util.property.ProjectProperties> others) {
                // Property loading uses a "last one in wins" strategy
                List<org.kuali.common.util.property.ProjectProperties> list = new ArrayList<org.kuali.common.util.property.ProjectProperties>();

                // Add project properties first so they can be used to resolve locations
                list.add(project);

                if (!CollectionUtils.isEmpty(others)) {
                        // Load in other project properties
                        list.addAll(others);

                        // Add project properties last so they override loaded properties
                        list.add(project);
                }

                // Get a PropertySource object backed by the properties loaded from the list as well as system/environment properties
                return getGlobalPropertySource(GLOBAL_SPRING_PROPERTY_SOURCE_NAME, list);
        }

        public static List<String> getIncludes(Environment env, String key, String defaultValue) {
                String includes = SpringUtils.getProperty(env, key, defaultValue);
                if (NullUtils.isNull(includes) || StringUtils.equals(includes, Constants.WILDCARD)) {
                        return new ArrayList<String>();
                } else {
                        return CollectionUtils.getTrimmedListFromCSV(includes);
                }
        }

        public static List<String> getIncludes(Environment env, String key) {
                return getIncludes(env, key, null);
        }

        public static List<String> getExcludes(Environment env, String key, String defaultValue) {
                String excludes = SpringUtils.getProperty(env, key, defaultValue);
                if (NullUtils.isNullOrNone(excludes)) {
                        return new ArrayList<String>();
                } else {
                        return CollectionUtils.getTrimmedListFromCSV(excludes);
                }
        }

        public static List<String> getExcludes(Environment env, String key) {
                return getExcludes(env, key, null);
        }

        /**
         * Given a property holding the name of a class, return an instance of that class
         */
        public static <T> T getInstance(Environment env, String key, Class<T> defaultValue) {
                String className = getProperty(env, key, defaultValue.getCanonicalName());
                return ReflectionUtils.newInstance(className);
        }

        /**
         * Given a property holding the name of a class, return an instance of that class
         */
        public static <T> T getInstance(Environment env, String key) {
                String className = getProperty(env, key, null);
                return ReflectionUtils.newInstance(className);
        }

        public static List<String> getListFromCSV(Environment env, String key, String defaultValue) {
                String csv = SpringUtils.getProperty(env, key, defaultValue);
                return CollectionUtils.getTrimmedListFromCSV(csv);
        }

        public static List<String> getListFromCSV(Environment env, String key) {
                String csv = SpringUtils.getProperty(env, key);
                return CollectionUtils.getTrimmedListFromCSV(csv);
        }

        /**
         * If the CSV value evaluates to <code>null</code>, <code>"null"</code>, <code>"none"</code> or the empty string, return an empty list.
         */
        public static List<String> getNoneSensitiveListFromCSV(Environment env, String key) {
                String csv = SpringUtils.getProperty(env, key);
                return CollectionUtils.getNoneSensitiveListFromCSV(csv);
        }

        /**
         * If the CSV value evaluates to <code>null</code>, <code>"null"</code>, <code>"none"</code> or the empty string, return an empty list.
         */
        public static List<String> getNoneSensitiveListFromCSV(EnvironmentService env, String key, String defaultValue) {
                String csv = env.getString(key, defaultValue);
                return CollectionUtils.getNoneSensitiveListFromCSV(csv);
        }

        /**
         * If the CSV value evaluates to <code>null</code>, <code>"null"</code>, <code>"none"</code> or the empty string, return an empty list.
         */
        public static List<String> getNoneSensitiveListFromCSV(EnvironmentService env, String key) {
                return getNoneSensitiveListFromCSV(env, key, null);
        }

        /**
         * If the environment contains a value for <code>key</code> (NONE sensitive) use the environment value, otherwise use the defaults.
         */
        public static List<String> getStrings(EnvironmentService env, String key, List<String> defaults) {
                if (env.containsProperty(key)) {
                        return getNoneSensitiveListFromCSV(env, key);
                } else {
                        return defaults;
                }
        }

        /**
         * If the environment contains a value for any of the elements in <code>keys</code> (NONE sensitive) use the environment value, otherwise return <code>Optional.absent()</code>
         */
        public static Optional<List<String>> getOptionalStrings(EnvironmentService env, List<String> keys) {
                for (String key : keys) {
                        if (env.containsProperty(key)) {
                                return Optional.of(getNoneSensitiveListFromCSV(env, key));
                        }
                }
                return Optional.absent();
        }

        /**
         * If the CSV value evaluates to <code>null</code>, <code>"null"</code>, <code>"none"</code> or the empty string, return an empty list.
         */
        public static List<String> getNoneSensitiveListFromCSV(Environment env, String key, String defaultValue) {
                String csv = SpringUtils.getProperty(env, key, defaultValue);
                return CollectionUtils.getNoneSensitiveListFromCSV(csv);
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(org.kuali.common.util.service.SpringService service, Class<?> annotatedClass, String propertiesBeanName,
                        Properties properties) {
                return getPropertySources(annotatedClass, propertiesBeanName, properties);
        }

        /**
         * Scan the annotated class to find the single bean registered in the context that implements <code>PropertySource</code>. If more than one bean is located, throw
         * <code>IllegalStateException</code>.
         */
        @Deprecated
        public static PropertySource<?> getSinglePropertySource(Class<?> annotatedClass) {
                return getSinglePropertySource(annotatedClass, null, null);
        }

        /**
         * Scan the annotated class to find the single bean registered in the context that implements <code>PropertySource</code>. If more than one bean is located, throw
         * <code>IllegalStateException</code>.
         */
        @Deprecated
        public static PropertySource<?> getSinglePropertySource(Class<?> annotatedClass, String propertiesBeanName, Properties properties) {
                List<PropertySource<?>> sources = getPropertySources(annotatedClass, propertiesBeanName, properties);
                Assert.isTrue(sources.size() == 1, "Must be exactly one PropertySource registered in the context");
                return sources.get(0);
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(Class<?> annotatedClass, String propertiesBeanName, Properties properties) {
                return getPropertySources(annotatedClass, propertiesBeanName, properties, null, null);
        }

        public static void setupProfiles(ConfigurableApplicationContext ctx, List<String> activeProfiles, List<String> defaultProfiles) {
                if (!CollectionUtils.isEmpty(activeProfiles)) {
                        ConfigurableEnvironment env = ctx.getEnvironment();
                        env.setActiveProfiles(CollectionUtils.toStringArray(activeProfiles));
                }
                if (!CollectionUtils.isEmpty(defaultProfiles)) {
                        ConfigurableEnvironment env = ctx.getEnvironment();
                        env.setDefaultProfiles(CollectionUtils.toStringArray(defaultProfiles));
                }
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(Class<?> annotatedClass, String propertiesBeanName, Properties properties, List<String> activeProfiles,
                        List<String> defaultProfiles) {
                ConfigurableApplicationContext parent = null;
                if (properties == null) {
                        parent = getConfigurableApplicationContext();
                } else {
                        parent = getContextWithPreRegisteredBean(propertiesBeanName, properties);
                }
                AnnotationConfigApplicationContext child = new AnnotationConfigApplicationContext();
                child.setParent(parent);
                setupProfiles(child, activeProfiles, defaultProfiles);
                child.register(annotatedClass);
                child.refresh();
                return getPropertySources(child);
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(org.kuali.common.util.service.SpringService service, String location, String mavenPropertiesBeanName,
                        Properties mavenProperties) {
                return getPropertySources(location, mavenPropertiesBeanName, mavenProperties);
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(String location, String propertiesBeanName, Properties properties) {
                return getPropertySources(location, propertiesBeanName, properties, null, null);
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(String location, String propertiesBeanName, Properties properties, List<String> activeProfiles,
                        List<String> defaultProfiles) {
                String[] locationsArray = { location };
                ConfigurableApplicationContext parent = getContextWithPreRegisteredBean(propertiesBeanName, properties);
                ConfigurableApplicationContext child = new ClassPathXmlApplicationContext(locationsArray, false, parent);
                setupProfiles(child, activeProfiles, defaultProfiles);
                child.refresh();
                return getPropertySources(child);
        }

        @Deprecated
        public static Executable getSpringExecutable(Environment env, boolean skip, PropertySource<?> ps, List<Class<?>> annotatedClasses) {
                /**
                 * This line creates a property source containing 100% of the properties needed by Spring to resolve any/all placeholders. It will be the only property source available to
                 * Spring so it needs to include system properties and environment variables
                 */
                org.kuali.common.util.service.PropertySourceContext psc = new org.kuali.common.util.service.PropertySourceContext(ps, true);

                // Setup the Spring context
                org.kuali.common.util.service.SpringContext context = new org.kuali.common.util.service.SpringContext();
                context.setAnnotatedClasses(annotatedClasses);
                context.setPropertySourceContext(psc);

                // Load the context
                org.kuali.common.util.execute.SpringExecutable se = new org.kuali.common.util.execute.SpringExecutable();
                se.setService(new org.kuali.common.util.service.DefaultSpringService());
                se.setContext(context);
                se.setSkip(skip);
                return se;
        }

        public static int getInteger(Environment env, String key) {
                String value = getProperty(env, key);
                return Integer.parseInt(value);
        }

        public static int getInteger(Environment env, String key, int defaultValue) {
                String value = getProperty(env, key, Integer.toString(defaultValue));
                return Integer.parseInt(value);
        }

        public static long getLong(Environment env, String key) {
                String value = getProperty(env, key);
                return Long.parseLong(value);
        }

        public static long getLong(Environment env, String key, long defaultValue) {
                String value = getProperty(env, key, Long.toString(defaultValue));
                return Long.parseLong(value);
        }

        public static double getDouble(Environment env, String key) {
                String value = getProperty(env, key);
                return Double.parseDouble(value);
        }

        public static double getDouble(Environment env, String key, double defaultValue) {
                String value = getProperty(env, key, Double.toString(defaultValue));
                return Double.parseDouble(value);
        }

        /**
         * Parse milliseconds from a time string that ends with a unit of measure. If no unit of measure is provided, milliseconds is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getMillis(String time)
         */
        public static long getMillis(EnvironmentService env, String key, String defaultValue) {
                String value = env.getString(key, defaultValue);
                return FormatUtils.getMillis(value);
        }

        /**
         * Parse milliseconds from a time string that ends with a unit of measure. If no unit of measure is provided, milliseconds is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getMillis(String time)
         */
        public static Optional<Integer> getMillisAsInt(EnvironmentService env, String key, Optional<Integer> provided) {
                if (env.containsProperty(key)) {
                        String defaultValue = FormatUtils.getTime(provided.get());
                        Long millis = getMillis(env, key, defaultValue);
                        return Optional.of(millis.intValue());
                } else {
                        return provided;
                }
        }

        /**
         * Parse milliseconds from a time string that ends with a unit of measure. If no unit of measure is provided, milliseconds is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getMillis(String time)
         */
        public static int getMillisAsInt(EnvironmentService env, String key, String defaultValue) {
                return new Long(getMillis(env, key, defaultValue)).intValue();
        }

        /**
         * Parse milliseconds from a time string that ends with a unit of measure. If no unit of measure is provided, milliseconds is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getMillis(String time)
         */
        public static int getMillisAsInt(EnvironmentService env, String key, int defaultValue) {
                return getMillisAsInt(env, key, FormatUtils.getTime(defaultValue));
        }

        /**
         * Parse milliseconds from a time string that ends with a unit of measure. If no unit of measure is provided, milliseconds is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getMillis(String time)
         */
        public static long getMillis(Environment env, String key, String defaultValue) {
                String value = getProperty(env, key, defaultValue);
                return FormatUtils.getMillis(value);
        }

        /**
         * Parse bytes from a size string that ends with a unit of measure. If no unit of measure is provided, bytes is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getBytes(String size)
         */
        public static int getBytesInteger(Environment env, String key, String defaultValue) {
                Long value = getBytes(env, key, defaultValue);
                return getValidatedIntValue(value);
        }

        /**
         * Parse bytes from a size string that ends with a unit of measure. If no unit of measure is provided, bytes is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getBytes(String size)
         */
        public static int getBytesInteger(Environment env, String key) {
                Long value = getBytes(env, key);
                return getValidatedIntValue(value);
        }

        /**
         * Throw IllegalArgumentException if value is outside the range of an Integer, otherwise return the Integer value.
         */
        public static int getValidatedIntValue(Long value) {
                if (value > Integer.MAX_VALUE || value < Integer.MIN_VALUE) {
                        throw new IllegalArgumentException(value + " is outside the range of an integer");
                } else {
                        return value.intValue();
                }
        }

        /**
         * Parse bytes from a size string that ends with a unit of measure. If no unit of measure is provided, bytes is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getBytes(String size)
         */
        public static long getBytes(Environment env, String key, String defaultValue) {
                String value = getProperty(env, key, defaultValue);
                return FormatUtils.getBytes(value);
        }

        /**
         * Parse bytes from a size string that ends with a unit of measure. If no unit of measure is provided, bytes is assumed. Unit of measure is case insensitive.
         * 
         * @see FormatUtils.getBytes(String size)
         */
        public static long getBytes(Environment env, String key) {
                String value = getProperty(env, key);
                return FormatUtils.getBytes(value);
        }

        public static File getFile(Environment env, String key) {
                String value = getProperty(env, key);
                return new File(value);
        }

        public static List<File> getFilesFromCSV(Environment env, String key, String defaultValue) {
                List<String> strings = getNoneSensitiveListFromCSV(env, key, defaultValue);
                List<File> files = new ArrayList<File>();
                for (String string : strings) {
                        File file = new File(string);
                        files.add(file);
                }
                return files;
        }

        public static List<File> getFilesFromCSV(Environment env, String key) {
                return getFilesFromCSV(env, key, null);
        }

        public static File getFile(Environment env, String key, File defaultValue) {
                String value = getProperty(env, key, LocationUtils.getCanonicalPath(defaultValue));
                return new File(value);
        }

        public static boolean getBoolean(Environment env, String key, boolean defaultValue) {
                String value = getProperty(env, key, Boolean.toString(defaultValue));
                return Boolean.parseBoolean(value);
        }

        public static boolean getBoolean(Environment env, String key) {
                String value = getProperty(env, key);
                return Boolean.parseBoolean(value);
        }

        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(String name, List<org.kuali.common.util.property.ProjectProperties> pps) {
                // Load them from disk
                Properties source = PropertyUtils.load(pps);

                // Add in system/environment properties
                Properties globalSource = PropertyUtils.getGlobalProperties(source);

                logger.debug("Before prepareContextProperties()");
                PropertyUtils.debug(globalSource);

                // Prepare them so they are ready for use
                PropertyUtils.prepareContextProperties(globalSource);

                logger.debug("After prepareContextProperties()");
                PropertyUtils.debug(globalSource);

                // Return a PropertySource backed by the properties
                return new PropertiesPropertySource(name, globalSource);
        }

        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(Properties properties) {
                return new PropertiesPropertySource(GLOBAL_SPRING_PROPERTY_SOURCE_NAME, properties);
        }

        /**
         * Return a SpringContext that resolves all placeholders from the PropertySource passed in
         */
        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(List<String> locations, String encoding) {
                Properties loaded = PropertyUtils.load(locations, encoding);
                Properties global = PropertyUtils.getGlobalProperties(loaded);
                PropertyUtils.prepareContextProperties(global);
                return getGlobalPropertySource(global);
        }

        /**
         * Return a SpringContext that resolves all placeholders from the list of property locations passed in + System/Environment properties
         */
        @Deprecated
        public static org.kuali.common.util.service.SpringContext getSinglePropertySourceContext(org.kuali.common.util.ProjectContext context, String location) {
                PropertySource<?> source = getGlobalPropertySource(context, location);
                return getSinglePropertySourceContext(source);
        }

        /**
         * Return a SpringExecutable for the project, properties location, and config passed in.
         */
        @Deprecated
        public static org.kuali.common.util.execute.SpringExecutable getSpringExecutable(org.kuali.common.util.ProjectContext project, String location, List<Class<?>> annotatedClasses) {
                org.kuali.common.util.service.SpringContext context = getSinglePropertySourceContext(project, location);
                context.setAnnotatedClasses(annotatedClasses);

                org.kuali.common.util.execute.SpringExecutable executable = new org.kuali.common.util.execute.SpringExecutable();
                executable.setContext(context);
                return executable;
        }

        /**
         * Return a SpringExecutable for the org.kuali.common.util.config.supplier.PropertiesSupplier and annotatedClass passed in
         */
        @Deprecated
        public static org.kuali.common.util.execute.SpringExecutable getSpringExecutable(org.kuali.common.util.config.supplier.PropertiesSupplier supplier, Class<?> annotatedClass) {
                return getSpringExecutable(supplier, CollectionUtils.asList(annotatedClass));
        }

        /**
         * Return a SpringExecutable for the org.kuali.common.util.config.supplier.PropertiesSupplier and annotatedClasses passed in
         */
        @Deprecated
        public static org.kuali.common.util.execute.SpringExecutable getSpringExecutable(org.kuali.common.util.config.supplier.PropertiesSupplier supplier,
                        List<Class<?>> annotatedClasses) {
                Properties properties = supplier.getProperties();
                PropertySource<?> source = getGlobalPropertySource(properties);
                org.kuali.common.util.service.SpringContext context = getSinglePropertySourceContext(source);
                context.setAnnotatedClasses(annotatedClasses);
                return new org.kuali.common.util.execute.SpringExecutable(context);
        }

        /**
         * Return a SpringExecutable for the PropertySource and annotatedClass passed in
         */
        @Deprecated
        public static org.kuali.common.util.execute.SpringExecutable getSpringExecutable(PropertySource<?> source, Class<?> annotatedClass) {
                org.kuali.common.util.service.SpringContext context = getSinglePropertySourceContext(source);
                context.setAnnotatedClasses(CollectionUtils.asList(annotatedClass));
                return new org.kuali.common.util.execute.SpringExecutable(context);
        }

        /**
         * Return a SpringExecutable for the project, properties location, and config passed in.
         */
        @Deprecated
        public static org.kuali.common.util.execute.SpringExecutable getSpringExecutable(org.kuali.common.util.ProjectContext project, String location, Class<?> annotatedClass) {
                return getSpringExecutable(project, location, CollectionUtils.asList(annotatedClass));
        }

        /**
         * Return a SpringExecutable for the project, properties location, and config passed in.
         */
        @Deprecated
        public static org.kuali.common.util.execute.SpringExecutable getSpringExecutable(Class<?> annotatedClass, String location, org.kuali.common.util.ProjectContext... projects) {
                List<org.kuali.common.util.property.ProjectProperties> list = ConfigUtils.getProjectProperties(projects);
                org.kuali.common.util.property.ProjectProperties last = list.get(list.size() - 1);
                PropertiesContext pc = last.getPropertiesContext();
                if (!StringUtils.isBlank(location)) {
                        List<String> locations = new ArrayList<String>(CollectionUtils.toEmptyList(pc.getLocations()));
                        locations.add(location);
                        pc.setLocations(locations);
                }
                PropertySource<?> source = getGlobalPropertySource(GLOBAL_SPRING_PROPERTY_SOURCE_NAME, list);
                org.kuali.common.util.service.SpringContext context = getSinglePropertySourceContext(source);
                context.setAnnotatedClasses(CollectionUtils.asList(annotatedClass));
                return new org.kuali.common.util.execute.SpringExecutable(context);
        }

        /**
         * Return a SpringContext that resolves all placeholders from the list of property locations passed in + System/Environment properties
         */
        @Deprecated
        public static org.kuali.common.util.service.SpringContext getSinglePropertySourceContext(List<String> locations, String encoding) {
                PropertySource<?> source = getGlobalPropertySource(locations, encoding);
                return getSinglePropertySourceContext(source);
        }

        /**
         * Return a SpringContext that resolves all placeholders from the PropertySource passed in
         */
        @Deprecated
        public static org.kuali.common.util.service.SpringContext getSinglePropertySourceContext(PropertySource<?> source) {
                // Setup a property source context such that our single property source is the only one registered with Spring
                // This will make it so our PropertySource is the ONLY thing used to resolve placeholders
                org.kuali.common.util.service.PropertySourceContext psc = new org.kuali.common.util.service.PropertySourceContext(source, true);

                // Setup a Spring context
                org.kuali.common.util.service.SpringContext context = new org.kuali.common.util.service.SpringContext();

                // Supply Spring with our PropertySource
                context.setPropertySourceContext(psc);

                // Return a Spring context configured with a single property source
                return context;
        }

        @Deprecated
        public static PropertySource<?> getGlobalPropertySource(org.kuali.common.util.ProjectContext context, String... locations) {
                org.kuali.common.util.property.ProjectProperties pp = org.kuali.common.util.ProjectUtils.getProjectProperties(context);
                PropertiesContext pc = pp.getPropertiesContext();
                List<String> existingLocations = CollectionUtils.toEmptyList(pc.getLocations());
                if (locations != null) {
                        for (String location : locations) {
                                existingLocations.add(location);
                        }
                }
                pc.setLocations(existingLocations);
                return getGlobalPropertySource(pp);
        }

        @Deprecated
        public static PropertySource<?> getPropertySource(String name, List<org.kuali.common.util.property.ProjectProperties> pps) {
                // Load them from disk
                Properties source = PropertyUtils.load(pps);

                // Prepare them so they are ready for use
                PropertyUtils.prepareContextProperties(source);

                // Return a PropertySource backed by the properties
                return new PropertiesPropertySource(name, source);
        }

        /**
         * Converts a GAV into Spring's classpath style notation for the default project properties context.
         * 
         * <pre>
         *  org.kuali.common:kuali-jdbc -> classpath:org/kuali/common/kuali-jdbc/properties-context.xml
         * </pre>
         */
        @Deprecated
        public static String getDefaultPropertyContextLocation(String gav) {
                Assert.hasText(gav, "gav has no text");
                org.kuali.common.util.Project p = org.kuali.common.util.ProjectUtils.getProject(gav);
                return org.kuali.common.util.ProjectUtils.getClassPathPrefix(p) + "/properties-context.xml";
        }

        /**
         * Make sure all of the locations actually exist.<br>
         */
        @Deprecated
        public static void validateExists(List<String> locations) {
                LocationUtils.validateExists(locations);
        }

        public static AbstractApplicationContext getContextWithPreRegisteredBeans(String id, String displayName, Map<String, ?> beans) {
                GenericXmlApplicationContext appContext = new GenericXmlApplicationContext();
                if (!StringUtils.isBlank(id)) {
                        appContext.setId(id);
                }
                if (!StringUtils.isBlank(displayName)) {
                        appContext.setDisplayName(displayName);
                }
                appContext.refresh();
                ConfigurableListableBeanFactory factory = appContext.getBeanFactory();
                for (String beanName : beans.keySet()) {
                        Object bean = beans.get(beanName);
                        logger.debug("Registering bean - [{}] -> [{}]", beanName, bean.getClass().getName());
                        factory.registerSingleton(beanName, bean);
                }
                return appContext;
        }

        @Deprecated
        public static ConfigurableApplicationContext getContextWithPreRegisteredBeans(String id, String displayName, List<String> beanNames, List<Object> beans) {
                Map<String, Object> contextBeans = new HashMap<String, Object>();
                CollectionUtils.combine(contextBeans, beanNames, beans);
                return getContextWithPreRegisteredBeans(id, displayName, contextBeans);
        }

        @Deprecated
        public static ConfigurableApplicationContext getContextWithPreRegisteredBeans(List<String> beanNames, List<Object> beans) {
                return getContextWithPreRegisteredBeans(null, null, beanNames, beans);
        }

        @Deprecated
        public static ConfigurableApplicationContext getConfigurableApplicationContext() {
                return new GenericXmlApplicationContext();
        }

        /**
         * Null safe refresh for a context
         */
        public static void refreshQuietly(ConfigurableApplicationContext context) {
                if (context != null) {
                        context.refresh();
                }
        }

        /**
         * Null safe close for a context
         */
        public static void closeQuietly(ConfigurableApplicationContext context) {
                if (context != null) {
                        context.close();
                }
        }

        @Deprecated
        public static ConfigurableApplicationContext getContextWithPreRegisteredBean(String beanName, Object bean) {
                return getContextWithPreRegisteredBeans(Arrays.asList(beanName), Arrays.asList(bean));
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySourcesFromAnnotatedClass(String annotatedClassName) {
                Class<?> annotatedClass = ReflectionUtils.getClass(annotatedClassName);
                return getPropertySources(annotatedClass);
        }

        @Deprecated
        public static List<PropertySource<?>> getPropertySources(Class<?> annotatedClass) {
                return PropertySourceUtils.getPropertySources(annotatedClass);
        }

        @Deprecated
        public static List<PropertySource<?>> extractPropertySourcesAndClose(ConfigurableApplicationContext context) {
                return PropertySourceUtils.extractPropertySourcesAndClose(context);
        }

        /**
         * Scan the XML Spring context for any beans that implement <code>PropertySource</code>
         */
        @Deprecated
        public static List<PropertySource<?>> getPropertySources(String location) {
                ConfigurableApplicationContext context = new GenericXmlApplicationContext(location);
                return extractPropertySourcesAndClose(context);
        }

        /**
         * This method returns a list of any PropertySource objects registered in the indicated context. They are sorted by property source name.
         */
        @Deprecated
        public static List<PropertySource<?>> getPropertySources(ConfigurableApplicationContext context) {
                return PropertySourceUtils.getPropertySources(context);
        }

        public static <T> Map<String, T> getAllBeans(List<String> locations, Class<T> type) {
                String[] locationsArray = locations.toArray(new String[locations.size()]);
                ConfigurableApplicationContext ctx = new GenericXmlApplicationContext(locationsArray);
                Map<String, T> map = BeanFactoryUtils.beansOfTypeIncludingAncestors(ctx, type);
                ctx.close();
                return map;
        }

        public static <T> Map<String, T> getAllBeans(String location, Class<T> type) {
                ConfigurableApplicationContext ctx = new GenericXmlApplicationContext(location);
                Map<String, T> map = BeanFactoryUtils.beansOfTypeIncludingAncestors(ctx, type);
                ctx.close();
                return map;
        }

        public static <T> Map<String, T> getAllBeans(ConfigurableApplicationContext ctx, Class<T> type) {
                return BeanFactoryUtils.beansOfTypeIncludingAncestors(ctx, type);
        }

        /**
         * This method returns a list of any PropertySource objects registered in the indicated context. The comparator is responsible for putting them in correct order.
         */
        @Deprecated
        public static List<PropertySource<?>> getPropertySources(ConfigurableApplicationContext context, Comparator<PropertySource<?>> comparator) {
                return PropertySourceUtils.getPropertySources(context, comparator);
        }

        /**
         * Null safe method for converting an untyped array of property sources into a list. Never returns null.
         */
        @Deprecated
        public static List<PropertySource<?>> asList(PropertySource<?>... sources) {
                return PropertySourceUtils.asList(sources);
        }

        public static void debugQuietly(ApplicationContext ctx) {
                if (!logger.isDebugEnabled() || ctx == null) {
                        return;
                }
                if (ctx.getParent() != null) {
                        debug(ctx.getParent());
                }
                debug(ctx);
        }

        public static void debug(ApplicationContext ctx) {
                logger.debug("------------------------ Spring Context ------------------------------");
                logger.debug("Id: [{}]", ctx.getId());
                logger.debug("Display Name: [{}]", ctx.getDisplayName());
                logger.debug("Application Name: [{}]", ctx.getApplicationName());
                logger.debug("----------------------------------------------------------------------");
                List<String> names = Arrays.asList(BeanFactoryUtils.beanNamesIncludingAncestors(ctx));
                List<String> columns = Arrays.asList("Name", "Type", "Hashcode");
                List<Object[]> rows = new ArrayList<Object[]>();
                Collections.sort(names);
                for (String name : names) {
                        Object bean = ctx.getBean(name);
                        String instance = (bean == null) ? NullUtils.NULL : bean.getClass().getSimpleName();
                        String hashcode = (bean == null) ? NullUtils.NULL : Integer.toHexString(bean.hashCode());
                        Object[] row = { name, instance, hashcode };
                        rows.add(row);
                }
                LoggerUtils.logTable(columns, rows, LoggerLevel.DEBUG, logger, true);
                logger.debug("----------------------------------------------------------------------");
        }

        @Deprecated
        public static void showPropertySources(List<PropertySource<?>> propertySources) {
                List<String> columns = Arrays.asList("Name", "Impl", "Source");
                List<Object[]> rows = new ArrayList<Object[]>();
                for (PropertySource<?> propertySource : propertySources) {
                        String name = propertySource.getName();
                        String impl = propertySource.getClass().getName();
                        String source = propertySource.getSource().getClass().getName();
                        Object[] row = { name, impl, source };
                        rows.add(row);
                }
                LoggerUtils.logTable(columns, rows, LoggerLevel.INFO, logger, true);
        }

        @Deprecated
        public static void showPropertySources(ConfigurableEnvironment env) {
                showPropertySources(getPropertySources(env));
        }

        /**
         * Get a fully resolved property value from the environment. If the property is not found or contains unresolvable placeholders an exception is thrown.
         */
        public static String getProperty(Environment env, String key) {
                String value = env.getRequiredProperty(key);
                return env.resolveRequiredPlaceholders(value);
        }

        /**
         * Return true if the environment value for key is not null.
         */
        public static boolean exists(Environment env, String key) {
                return env.getProperty(key) != null;
        }

        /**
         * Always return a fully resolved value. Use <code>defaultValue</code> if a value cannot be located in the environment. Throw an exception if the return value contains
         * unresolvable placeholders.
         */
        public static String getProperty(Environment env, String key, String defaultValue) {
                if (defaultValue == null) {
                        // No default value supplied, we must be able to locate this property in the environment
                        return getProperty(env, key);
                } else {
                        // Look up a value from the environment
                        String value = env.getProperty(key);
                        if (value == null) {
                                // Resolve the default value against the environment
                                return env.resolveRequiredPlaceholders(defaultValue);
                        } else {
                                // Resolve the located value against the environment
                                return env.resolveRequiredPlaceholders(value);
                        }
                }
        }

        /**
         * Examine <code>ConfigurableEnvironment</code> for <code>PropertySource</code>'s that extend <code>EnumerablePropertySource</code> and aggregate them into a single
         * <code>Properties</code> object
         */
        @Deprecated
        public static Properties getAllEnumerableProperties(ConfigurableEnvironment env) {

                // Extract the list of PropertySources from the environment
                List<PropertySource<?>> sources = getPropertySources(env);

                // Spring provides PropertySource objects ordered from highest priority to lowest priority
                // We reverse the order here so things follow the typical "last one in wins" strategy
                Collections.reverse(sources);

                // Convert the list of PropertySource's to a list of Properties objects
                PropertySourceConversionResult result = convertEnumerablePropertySources(sources);

                // Combine them into a single Properties object
                return PropertyUtils.combine(result.getPropertiesList());
        }

        /**
         * Remove any existing property sources and add one property source backed by the properties passed in
         */
        @Deprecated
        public static void reconfigurePropertySources(ConfigurableEnvironment env, String name, Properties properties) {
                PropertySourceUtils.reconfigurePropertySources(env, name, properties);
        }

        /**
         * Remove any existing property sources
         */
        @Deprecated
        public static void removeAllPropertySources(ConfigurableEnvironment env) {
                PropertySourceUtils.removeAllPropertySources(env);
        }

        /**
         * Get all PropertySource objects from the environment as a List.
         */
        @Deprecated
        public static List<PropertySource<?>> getPropertySources(ConfigurableEnvironment env) {
                return PropertySourceUtils.getPropertySources(env);
        }

        /**
         * Convert any PropertySources that extend EnumerablePropertySource into Properties object's
         */
        @Deprecated
        public static PropertySourceConversionResult convertEnumerablePropertySources(List<PropertySource<?>> sources) {
                PropertySourceConversionResult result = new PropertySourceConversionResult();
                List<Properties> list = new ArrayList<Properties>();
                List<PropertySource<?>> converted = new ArrayList<PropertySource<?>>();
                List<PropertySource<?>> skipped = new ArrayList<PropertySource<?>>();
                // Extract property values from the sources and place them in a Properties object
                for (PropertySource<?> source : sources) {
                        Assert.isTrue(source instanceof EnumerablePropertySource, "[" + source + "] is not enumerable");
                        EnumerablePropertySource<?> eps = (EnumerablePropertySource<?>) source;
                        Properties sourceProperties = convert(eps);
                        list.add(sourceProperties);
                        converted.add(source);
                }
                result.setConverted(converted);
                result.setSkipped(skipped);
                result.setPropertiesList(list);
                return result;
        }

        /**
         * Convert an EnumerablePropertySource into a Properties object.
         */
        @Deprecated
        public static Properties convert(EnumerablePropertySource<?> source) {
                Properties properties = new Properties();
                String[] names = source.getPropertyNames();
                for (String name : names) {
                        Object object = source.getProperty(name);
                        if (object != null) {
                                String value = object.toString();
                                properties.setProperty(name, value);
                        } else {
                                logger.warn("Property [{}] is null", name);
                        }
                }
                return properties;
        }

        /**
         * Return true if, and only if, <code>property</code> is set in the environment and evaluates to true.
         */
        public static boolean isTrue(Environment env, String property) {
                String value = env.getProperty(property);
                if (StringUtils.isBlank(value)) {
                        return false;
                } else {
                        return new Boolean(value);
                }
        }

}