| /* |
| * 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<String, ApiClass> mClasses = new HashMap<String, ApiClass>(); |
| |
| private ApiClass mCurrentClass; |
| |
| ApiParser() { |
| } |
| |
| Map<String, ApiClass> 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; |
| } |
| } |