001/*
002 * Copyright (c) 2011-2018 Nexmo Inc
003 *
004 * Permission is hereby granted, free of charge, to any person obtaining a copy
005 * of this software and associated documentation files (the "Software"), to deal
006 * in the Software without restriction, including without limitation the rights
007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
008 * copies of the Software, and to permit persons to whom the Software is
009 * furnished to do so, subject to the following conditions:
010 *
011 * The above copyright notice and this permission notice shall be included in
012 * all copies or substantial portions of the Software.
013 *
014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
020 * THE SOFTWARE.
021 */
022package com.nexmo.client.voice.ncco;
023
024import com.fasterxml.jackson.annotation.JsonValue;
025import com.fasterxml.jackson.core.JsonProcessingException;
026import com.fasterxml.jackson.databind.ObjectMapper;
027import com.fasterxml.jackson.databind.ObjectWriter;
028import com.nexmo.client.NexmoUnexpectedException;
029
030import java.util.Arrays;
031import java.util.Collection;
032import java.util.Collections;
033
034/**
035 * Nexmo Call Control Object for controlling the flow of a Voice API call.
036 */
037public class Ncco {
038    @JsonValue
039    private Collection<Action> actions;
040    private ObjectWriter writer;
041
042    public Ncco() {
043        this(new ObjectMapper().writer(), Collections.emptyList());
044    }
045
046    public Ncco(Collection<Action> actions) {
047        this(new ObjectMapper().writer(), actions);
048    }
049
050    public Ncco(ObjectWriter writer) {
051        this(writer, Collections.emptyList());
052    }
053
054    public Ncco(ObjectWriter writer, Collection<Action> actions) {
055        this.writer = writer;
056        this.actions = actions;
057    }
058
059    public Ncco(ObjectWriter writer, Action... action) {
060        this(writer, Arrays.asList(action));
061    }
062
063    public Ncco(Action... action) {
064        this(Arrays.asList(action));
065    }
066
067    public Collection<Action> getActions() {
068        return this.actions;
069    }
070
071    public String toJson() {
072        try {
073            return this.writer.writeValueAsString(this.actions);
074        } catch (JsonProcessingException e) {
075            throw new NexmoUnexpectedException("Unable to convert NCCO Object to JSON.");
076        }
077    }
078}