/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache 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.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
/* $Id: PDFNumsArray.java 611114 2008-01-11 09:04:28Z jeremias $ */
package org.apache.fop.pdf;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Writer;
import java.util.Iterator;
import java.util.Map;
import java.util.SortedMap;
import org.apache.commons.io.output.CountingOutputStream;
/**
* Class representing an "Nums" array object (for Number Trees).
*/
public class PDFNumsArray extends PDFObject {
/** Sorted Map holding the values of this array. */
protected SortedMap map = new java.util.TreeMap();
/**
* Create a new, empty array object.
* @param parent the object's parent if any
*/
public PDFNumsArray(PDFObject parent) {
super(parent);
}
/**
* Returns the length of the array
* @return the length of the array
*/
public int length() {
return this.map.size();
}
/**
* Sets an entry.
* @param key the key of the value to set
* @param obj the new value
*/
public void put(int key, Object obj) {
this.map.put(new Integer(key), obj);
}
/**
* Gets an entry.
* @param key the key of requested value
* @return the requested value
*/
public Object get(int key) {
return this.map.get(new Integer(key));
}
/** {@inheritDoc} */
protected int output(OutputStream stream) throws IOException {
CountingOutputStream cout = new CountingOutputStream(stream);
Writer writer = PDFDocument.getWriterFor(cout);
if (hasObjectNumber()) {
writer.write(getObjectID());
}
writer.write('[');
boolean first = true;
Iterator iter = this.map.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry)iter.next();
if (!first) {
writer.write(" ");
}
first = false;
formatObject(entry.getKey(), cout, writer);
writer.write(" ");
formatObject(entry.getValue(), cout, writer);
}
writer.write(']');
if (hasObjectNumber()) {
writer.write("\nendobj\n");
}
writer.flush();
return cout.getCount();
}
}