org.apache.fop.afp.modca.triplets.AttributeValueTriplet Maven / Gradle / Ivy
/*
* 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: AttributeValueTriplet.java 1683762 2015-06-05 14:23:11Z ssteiner $ */
package org.apache.fop.afp.modca.triplets;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import org.apache.fop.afp.AFPConstants;
/**
* The attribute value triplet is used to specify a value for a document
* attribute.
*/
public class AttributeValueTriplet extends AbstractTriplet {
private String attVal;
private int userEncoding = -1; //no encoding by default
/**
* Main constructor
*
* @param attVal an attribute value
*/
public AttributeValueTriplet(String attVal) {
super(ATTRIBUTE_VALUE);
this.attVal = truncate(attVal, MAX_LENGTH - 4);
}
public AttributeValueTriplet(String attVal, int userEncoding) {
this(attVal);
this.userEncoding = userEncoding;
}
/** {@inheritDoc} */
public void writeToStream(OutputStream os) throws IOException {
byte[] data = super.getData();
data[2] = 0x00; // Reserved
data[3] = 0x00; // Reserved
// convert name and value to ebcdic
byte[] tleByteValue = null;
try {
if (this.userEncoding != -1) {
tleByteValue = attVal.getBytes("Cp" + userEncoding);
} else {
tleByteValue = attVal.getBytes(AFPConstants.EBCIDIC_ENCODING);
}
} catch (UnsupportedEncodingException usee) {
throw new IllegalArgumentException(attVal + " encoding failed");
}
System.arraycopy(tleByteValue, 0, data, 4, tleByteValue.length);
os.write(data);
}
/** {@inheritDoc} */
public int getDataLength() {
return 4 + attVal.length();
}
/** {@inheritDoc} */
public String toString() {
return attVal;
}
}