com.ibm.wala.shrikeBT.tools

Class OfflineInstrumenterBase

java.lang.Object

com.ibm.wala.shrikeBT.tools.OfflineInstrumenterBase

Direct Known Subclasses:

OfflineInstrumenter

public abstract class OfflineInstrumenterBase
extends Object

This class provides functionality for performing offline instrumentation. It is subclassed with class-toolkit-specific functionality.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	OfflineInstrumenterBase.ManifestBuilder Thiscallback is notified whenever an entry has been added to the output zip file.

Field Summary

Fields

Modifier and Type	Field and Description
protected ClassHierarchyProvider	cha

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	OfflineInstrumenterBase()

Method Summary

Modifier and Type	Method and Description
void	addInputClass(File baseDirectory, File f) Add a class file containing a source class to instrument.
void	addInputDirectory(File baseDirectory, File d) Add a directory containing class files to instrument.
boolean	addInputElement(File baseDirectory, String a) Add something to instrument --- the name of a JAR file, a class file, a directory or an entry within a jar file (as filename#entryname).
void	addInputJar(File f) Add a JAR file containing source classes to instrument.
void	addInputJarEntry(File f, String name) Add a JAR entry containing a source class to instrument.
OutputStream	addOutputJarEntry(ZipEntry ze) Add a raw ZipEntry to the output JAR.
void	beginTraversal() Start traversing the source class list from the beginning.
void	close() Call this when you're done modifying classes.
static void	copyStream(InputStream in, OutputStream out)
void	endOutputJarEntry() Complete and flush the entry initiated by addOutputJarEntry.
protected abstract String	getClassName(Object cl)
String	getLastClassResourceName() Get the name of the resource containing the last class returned.
int	getNumInputClasses()
File	getOutputFile() Returns the File we are storing classes into.
protected Object	internalNextClass()
protected boolean	internalOutputModifiedClass(Object cf, String name, Object mods)
protected abstract Object	makeClassFromStream(String inputName, BufferedInputStream s)
String[]	parseStandardArgs(String[] args) Parse an argument list to find elements to instrument and the name of the output file.
void	setClassHierarchyProvider(ClassHierarchyProvider cha)
void	setIgnore() Skip the last class returned in every future traversal of the class list.
void	setJARComment(String comment) Set the JAR Comment for the output JAR.
void	setManifestBuilder(OfflineInstrumenterBase.ManifestBuilder mb) This installs a ManifestBuilder callback that this class will notify whenever an entry has been added to the output zip file.
void	setOutputJar(File f) Set the file in which instrumented classes will be deposited.
void	setPassUnmodifiedClasses(boolean pass) Indicate whether classes which are not modified will be put into the output jar anyway.
protected abstract void	writeClassTo(Object cl, Object mods, OutputStream s)
void	writeUnmodifiedClasses() Call this to copy any unmodified classes to the output.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cha

protected ClassHierarchyProvider cha

Constructor Detail

OfflineInstrumenterBase

protected OfflineInstrumenterBase()

Method Detail

setManifestBuilder

public void setManifestBuilder(OfflineInstrumenterBase.ManifestBuilder mb)

This installs a ManifestBuilder callback that this class will notify whenever an entry has been added to the output zip file.

setClassHierarchyProvider

public void setClassHierarchyProvider(ClassHierarchyProvider cha)

setOutputJar

public final void setOutputJar(File f)

Set the file in which instrumented classes will be deposited.

setPassUnmodifiedClasses

public final void setPassUnmodifiedClasses(boolean pass)

Indicate whether classes which are not modified will be put into the output jar anyway.

addInputJar

public final void addInputJar(File f)
                       throws IOException

Add a JAR file containing source classes to instrument.

Throws:

IOException

addInputJarEntry

public final void addInputJarEntry(File f,
                                   String name)

Add a JAR entry containing a source class to instrument.

addInputClass

public final void addInputClass(File baseDirectory,
                                File f)

Add a class file containing a source class to instrument.

addInputDirectory

public final void addInputDirectory(File baseDirectory,
                                    File d)
                             throws IOException,
                                    IllegalArgumentException

Add a directory containing class files to instrument. All subdirectories are also scanned.

Throws:

IllegalArgumentException - if d is null

IOException

addInputElement

public final boolean addInputElement(File baseDirectory,
                                     String a)
                              throws IOException

Add something to instrument --- the name of a JAR file, a class file, a directory or an entry within a jar file (as filename#entryname). If we can't identify it, nothing is added and we return false.

Throws:

IllegalArgumentException - if a is null

IOException

parseStandardArgs

public final String[] parseStandardArgs(String[] args)
                                 throws IllegalArgumentException,
                                        IOException

Parse an argument list to find elements to instrument and the name of the output file. The "-o filename" option selects the output JAR file name. Any other argument not starting with "-" is added to the list of elements to instrument, if it appears to be the name of a class file, JAR file, or directory. If any argument starting with "--" is encountered, the rest of the command-line is considered leftover

Returns:

the arguments that were not understood

Throws:

IllegalArgumentException - if args == null

IOException

getNumInputClasses

public final int getNumInputClasses()

Returns:

the number of source classes to be instrumented

beginTraversal

public final void beginTraversal()

Start traversing the source class list from the beginning.

makeClassFromStream

protected abstract Object makeClassFromStream(String inputName,
                                              BufferedInputStream s)
                                       throws IOException

Throws:

IOException

getClassName

protected abstract String getClassName(Object cl)

writeClassTo

protected abstract void writeClassTo(Object cl,
                                     Object mods,
                                     OutputStream s)
                              throws IOException

Throws:

IOException

internalNextClass

protected final Object internalNextClass()
                                  throws IOException

Throws:

IOException

getLastClassResourceName

public final String getLastClassResourceName()

Get the name of the resource containing the last class returned. This is either a file name (e.g., "com/ibm/Main.class"), or a JAR entry name (e.g., "apps/app.jar#com/ibm/Main.class").

Returns:

the resource name, or null if no class has been returned yet

getOutputFile

public final File getOutputFile()

Returns the File we are storing classes into.

internalOutputModifiedClass

protected final boolean internalOutputModifiedClass(Object cf,
                                                    String name,
                                                    Object mods)
                                             throws IOException

Throws:

IOException

setJARComment

public final void setJARComment(String comment)
                         throws IOException,
                                IllegalStateException

Set the JAR Comment for the output JAR.

Throws:

IOException

IllegalStateException

setIgnore

public final void setIgnore()
                     throws IllegalArgumentException

Skip the last class returned in every future traversal of the class list.

Throws:

IllegalArgumentException

copyStream

public static void copyStream(InputStream in,
                              OutputStream out)
                       throws IllegalArgumentException,
                              IOException

Throws:

IllegalArgumentException

IOException

addOutputJarEntry

public final OutputStream addOutputJarEntry(ZipEntry ze)
                                     throws IOException,
                                            IllegalStateException

Add a raw ZipEntry to the output JAR. Call endOutputJarEntry() when you're done.

Returns:

the OutputStream to be used to write the entry contents

Throws:

IOException

IllegalStateException

endOutputJarEntry

public final void endOutputJarEntry()
                             throws IOException,
                                    IllegalStateException

Complete and flush the entry initiated by addOutputJarEntry.

Throws:

IOException

IllegalStateException

writeUnmodifiedClasses

public final void writeUnmodifiedClasses()
                                  throws IOException,
                                         IllegalStateException

Call this to copy any unmodified classes to the output. This is called automatically by close(); you should only call this if you want to write an entry to the JAR file *after* the unmodified classes. This will only ever be called once per output JAR.

Throws:

IOException

IllegalStateException

close

public final void close()
                 throws IOException,
                        IllegalStateException

Call this when you're done modifying classes.

Throws:

IOException

IllegalStateException