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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed 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.
*/
package org.apache.harmony.xml;
import org.xml.sax.Attributes;
/**
* Wraps native attribute array.
*/
abstract class ExpatAttributes implements Attributes {
/**
* Since we don't do validation, pretty much everything is CDATA type.
*/
private static final String CDATA = "CDATA";
/**
* Gets the number of attributes.
*/
public abstract int getLength();
/**
* Gets the pointer to the parser. We need this so we can get to the
* interned string pool.
*/
abstract int getParserPointer();
/**
* Gets the pointer to the underlying attribute array. Can be 0 if the
* length is 0.
*/
public abstract int getPointer();
public String getURI(int index) {
if (index < 0 || index >= getLength()) {
return null;
}
return getURI(getParserPointer(), getPointer(), index);
}
public String getLocalName(int index) {
return (index < 0 || index >= getLength())
? null
: getLocalName(getParserPointer(), getPointer(), index);
}
public String getQName(int index) {
return (index < 0 || index >= getLength())
? null
: getQName(getParserPointer(), getPointer(), index);
}
public String getType(int index) {
return (index < 0 || index >= getLength()) ? null : CDATA;
}
public String getValue(int index) {
return (index < 0 || index >= getLength())
? null
: getValueByIndex(getPointer(), index);
}
public int getIndex(String uri, String localName) {
if (uri == null) {
throw new NullPointerException("uri == null");
}
if (localName == null) {
throw new NullPointerException("localName == null");
}
int pointer = getPointer();
if (pointer == 0) {
return -1;
}
return getIndex(pointer, uri, localName);
}
public int getIndex(String qName) {
if (qName == null) {
throw new NullPointerException("qName == null");
}
int pointer = getPointer();
if (pointer == 0) {
return -1;
}
return getIndexForQName(pointer, qName);
}
public String getType(String uri, String localName) {
if (uri == null) {
throw new NullPointerException("uri == null");
}
if (localName == null) {
throw new NullPointerException("localName == null");
}
return getIndex(uri, localName) == -1 ? null : CDATA;
}
public String getType(String qName) {
return getIndex(qName) == -1 ? null : CDATA;
}
public String getValue(String uri, String localName) {
if (uri == null) {
throw new NullPointerException("uri == null");
}
if (localName == null) {
throw new NullPointerException("localName == null");
}
int pointer = getPointer();
if (pointer == 0) {
return null;
}
return getValue(pointer, uri, localName);
}
public String getValue(String qName) {
if (qName == null) {
throw new NullPointerException("qName == null");
}
int pointer = getPointer();
if (pointer == 0) {
return null;
}
return getValueForQName(pointer, qName);
}
private static native String getURI(int pointer, int attributePointer, int index);
private static native String getLocalName(int pointer, int attributePointer, int index);
private static native String getQName(int pointer, int attributePointer, int index);
private static native String getValueByIndex(int attributePointer, int index);
private static native int getIndex(int attributePointer, String uri, String localName);
private static native int getIndexForQName(int attributePointer, String qName);
private static native String getValue(int attributePointer, String uri, String localName);
private static native String getValueForQName(int attributePointer, String qName);
protected native void freeAttributes(int pointer);
}
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