com.android.tools.lint.checks.ApiParser Maven / Gradle / Ivy
/*
* Copyright (C) 2012 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 com.android.tools.lint.checks;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import java.util.HashMap;
import java.util.Map;
/**
* Parser for the simplified XML API format version 1.
*/
public class ApiParser extends DefaultHandler {
private static final String NODE_API = "api";
private static final String NODE_CLASS = "class";
private static final String NODE_FIELD = "field";
private static final String NODE_METHOD = "method";
private static final String NODE_EXTENDS = "extends";
private static final String NODE_IMPLEMENTS = "implements";
private static final String ATTR_NAME = "name";
private static final String ATTR_SINCE = "since";
private final Map mClasses = new HashMap();
private ApiClass mCurrentClass;
ApiParser() {
}
Map getClasses() {
return mClasses;
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes)
throws SAXException {
if (localName == null || localName.isEmpty()) {
localName = qName;
}
try {
if (NODE_API.equals(localName)) {
// do nothing.
} else if (NODE_CLASS.equals(localName)) {
String name = attributes.getValue(ATTR_NAME);
int since = Integer.parseInt(attributes.getValue(ATTR_SINCE));
mCurrentClass = addClass(name, since);
} else if (NODE_EXTENDS.equals(localName)) {
String name = attributes.getValue(ATTR_NAME);
int since = getSince(attributes);
mCurrentClass.addSuperClass(name, since);
} else if (NODE_IMPLEMENTS.equals(localName)) {
String name = attributes.getValue(ATTR_NAME);
int since = getSince(attributes);
mCurrentClass.addInterface(name, since);
} else if (NODE_METHOD.equals(localName)) {
String name = attributes.getValue(ATTR_NAME);
int since = getSince(attributes);
mCurrentClass.addMethod(name, since);
} else if (NODE_FIELD.equals(localName)) {
String name = attributes.getValue(ATTR_NAME);
int since = getSince(attributes);
mCurrentClass.addField(name, since);
}
} finally {
super.startElement(uri, localName, qName, attributes);
}
}
private ApiClass addClass(String name, int apiLevel) {
ApiClass theClass = mClasses.get(name);
if (theClass == null) {
theClass = new ApiClass(name, apiLevel);
mClasses.put(name, theClass);
}
return theClass;
}
private int getSince(Attributes attributes) {
int since = mCurrentClass.getSince();
String sinceAttr = attributes.getValue(ATTR_SINCE);
if (sinceAttr != null) {
since = Integer.parseInt(sinceAttr);
}
return since;
}
}