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package org.monte.media.riff;

import java.util.*;

public class RIFFChunk {
    private int id;
    private int type;
    private long size;
    private long scan;
    private byte[] data;
    private Hashtable propertyChunks;
    private ArrayList collectionChunks;

    private String parserMessage;

    public RIFFChunk(int type, int id) {
        this.id = id;
        this.type = type;
        size = -1;
        scan = -1;
    }
    public RIFFChunk(int type, int id, long size, long scan) {
        this.id = id;
        this.type = type;
        this.size = size;
        this.scan = scan;
    }
    public RIFFChunk(int type, int id, long size, long scan, RIFFChunk propGroup) {
        this.id = id;
        this.type = type;
        this.size = size;
        this.scan = scan;
        if (propGroup != null) {
            if (propGroup.propertyChunks != null) {
                propertyChunks = new Hashtable(propGroup.propertyChunks);
            }
            if (propGroup.collectionChunks != null) {
                collectionChunks = new ArrayList(propGroup.collectionChunks);
            }
        }
    }


    public int getID() {
        return id;
    }


    public int getType() {
        return type;
    }


    public long getSize() {
        return size;
    }


    public long getScan() {
        return scan;
    }

    public void putPropertyChunk(RIFFChunk chunk) {
        if (propertyChunks == null) {
            propertyChunks = new Hashtable ();
        }
        propertyChunks.put(chunk,chunk);
    }

    public RIFFChunk getPropertyChunk(int id) {
        if (propertyChunks == null) {
            return null;
        }
        RIFFChunk chunk = new RIFFChunk(type, id);
        return propertyChunks.get(chunk);
    }

    public Enumeration propertyChunks() {
        if (propertyChunks == null) {
            propertyChunks = new Hashtable ();
        }
        return propertyChunks.keys();
    }

    public void addCollectionChunk(RIFFChunk chunk) {
        if (collectionChunks == null) {
            collectionChunks = new ArrayList();
        }
        collectionChunks.add(chunk);
    }

    public RIFFChunk[] getCollectionChunks(int id) {
        if (collectionChunks == null) {
            return new RIFFChunk[0];
        }
        Iterator enm = collectionChunks.iterator();
        int i = 0;
        while ( enm.hasNext() ) {
            RIFFChunk chunk = enm.next();
            if (chunk.id==id) {
                i++;
            }
        }
        RIFFChunk[] array = new RIFFChunk[i];
        i = 0;
        enm = collectionChunks.iterator();
        while ( enm.hasNext() ) {
            RIFFChunk chunk = enm.next();
            if (chunk.id==id) {
                array[i++] = chunk;
            }
        }
        return array;
    }
    public Iterator collectionChunks() {
        if (collectionChunks == null) {
            collectionChunks = new ArrayList();
        }
        return collectionChunks.iterator();
    }


    public void setData(byte[] data) {
        this.data = data;
    }

    public byte[] getData() {
        return data;
    }

    @Override
    public boolean equals(Object another) {
        if (another instanceof RIFFChunk) {
            RIFFChunk that = (RIFFChunk) another;
            return (that.id==this.id) && (that.type==this.type);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return id;
    }

    public void setParserMessage(String newValue) {
        this.parserMessage = newValue;
        }
    public String getParserMessage() {
        return this.parserMessage;
        }

    @Override
    public String toString() {
        return super.toString()+"{"+RIFFParser.idToString(getType())+","+RIFFParser.idToString(getID())+"}";
    }
}