fine-third/fine-jai/src/main/java/com/fr/third/JAI/PropertySet.java

package com.fr.third.JAI;
/*
 * Copyright (c) 2001 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 * -Redistributions of source code must retain the above copyright notice, this 
 * list of conditions and the following disclaimer.
 *
 * -Redistribution in binary form must reproduct the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that Software is not designed,licensed or intended for use in 
 * the design, construction, operation or maintenance of any nuclear facility.
 */
import java.io.IOException;
import java.util.Date;
import java.util.Hashtable;


class Property {

    private int type;
    private int offset;

    public Property(int type, int offset) {
        this.type = type;
        this.offset = offset;
    }

    public int getType() {
        return type;
    }

    public int getOffset() {
        return offset;
    }
}

class PropertySet {

    private static final int TYPE_VT_EMPTY = -1;
    private static final int TYPE_VT_NULL = -1;
    private static final int TYPE_VT_I2 = 2;
    private static final int TYPE_VT_I4 = 3;
    private static final int TYPE_VT_R4 = -1;
    private static final int TYPE_VT_R8 = -1;
    private static final int TYPE_VT_CY = -1;
    private static final int TYPE_VT_DATE = -1;
    private static final int TYPE_VT_BSTR = -1;
    private static final int TYPE_VT_ERROR = -1;
    private static final int TYPE_VT_BOOL = -1;
    private static final int TYPE_VT_VARIANT = -1;
    private static final int TYPE_VT_UI1 = -1;
    private static final int TYPE_VT_UI2 = -1;
    private static final int TYPE_VT_UI4 = 19;
    private static final int TYPE_VT_I8 = -1;
    private static final int TYPE_VT_UI8 = -1;
    private static final int TYPE_VT_LPSTR = 30;
    private static final int TYPE_VT_LPWSTR = 31;
    private static final int TYPE_VT_FILETIME = 64;
    private static final int TYPE_VT_BLOB = 65;
    private static final int TYPE_VT_STREAM = -1;
    private static final int TYPE_VT_STORAGE = -1;
    private static final int TYPE_VT_STREAMED_OBJECT = -1;
    private static final int TYPE_VT_STORED_OBJECT = -1;
    private static final int TYPE_VT_BLOB_OBJECT = -1;
    private static final int TYPE_VT_CF = 71;
    private static final int TYPE_VT_CLSID = 72;
    private static final int TYPE_VT_VECTOR = 4096;

    SeekableStream stream;
    Hashtable properties = new Hashtable();
    
    public PropertySet(SeekableStream stream) throws IOException {
        this.stream = stream;
        
        stream.seek(44);
        int sectionOffset = stream.readIntLE();

        stream.seek(sectionOffset);
        int sectionSize = stream.readIntLE();
        int sectionCount = stream.readIntLE();
        
        for (int i = 0; i < sectionCount; i++) {
            stream.seek(sectionOffset + 8*i + 8);
            int pid = stream.readIntLE();
            int offset = stream.readIntLE();

            stream.seek(sectionOffset + offset);
            int type = stream.readIntLE();

            Property p = new Property(type, sectionOffset + offset + 4);
            properties.put(new Integer(pid), p);
        }
    }

    public boolean hasProperty(int id) {
        Property p = (Property)properties.get(new Integer(id));
        return (p != null);
    }

    public int getI4(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();
            stream.seek(offset);
            return stream.readIntLE();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return -1;
    }

    public int getUI1(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();
            stream.seek(offset);
            return stream.readUnsignedByte();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return -1;
    }

    public int getUI2(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();
            stream.seek(offset);
            return stream.readUnsignedShortLE();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return -1;
    }

    public long getUI4(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();
            stream.seek(offset);
            return stream.readUnsignedIntLE();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return -1;
    }

    public long getUI4(int id, long defaultValue) {
        Property p = (Property)properties.get(new Integer(id));
        if (p == null) {
            return defaultValue;
        }

        try {
            int offset = p.getOffset();
            stream.seek(offset);
            return stream.readUnsignedIntLE();
        } catch (IOException e) {
            e.printStackTrace();
        }

        return -1;
    }

    public String getLPSTR(int id) {
        Property p = (Property)properties.get(new Integer(id));
        if (p == null) {
            return null;
        }

        try {
            int offset = p.getOffset();

            stream.seek(offset);
            int length = stream.readIntLE();
            StringBuffer sb = new StringBuffer(length);
            for (int i = 0; i < length; i++) {
                sb.append((char)stream.read());
            }
            
            return sb.toString();
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    public String getLPWSTR(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();

            stream.seek(offset);
            int length = stream.readIntLE();
            StringBuffer sb = new StringBuffer(length);
            for (int i = 0; i < length; i++) {
                sb.append(stream.readCharLE());
            }
            
            return sb.toString();
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    public float getR4(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();
            stream.seek(offset);
            return stream.readFloatLE();
        } catch (IOException e) {
            e.printStackTrace();
            return -1.0F;
        }
    }

    public Date getDate(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }

    public Date getFiletime(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }

    public byte[] getBlob(int id) {
        Property p = (Property)properties.get(new Integer(id));
        try {
            int offset = p.getOffset();
            stream.seek(offset);
            int length = stream.readIntLE();
            
            byte[] buf = new byte[length];
            stream.seek(offset + 4);
            stream.readFully(buf);

            return buf;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    public int[] getUI1Vector(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }

    public int[] getUI2Vector(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }

    public long[] getUI4Vector(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }

    public float[] getR4Vector(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }

    public String[] getLPWSTRVector(int id) {
        throw new RuntimeException(JaiI18N.getString("PropertySet0"));
    }
}