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/*
* 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.apigenerator;
import java.util.Map;
/**
* Parser state used during parsing of the platform API files.
*
*/
class ParserState {
private final int mApiLevel;
private final Map<String, ApiClass> mClasses;
private String mCurrentPackage;
private ApiClass mCurrentClass;
private String mMethodName;
private StringBuilder mMethodParams = new StringBuilder();
private String mMethodReturnType;
ParserState(Map<String, ApiClass> classes, int apiLevel) {
mClasses = classes;
mApiLevel = apiLevel;
}
Map<String, ApiClass> getClasses() {
return mClasses;
}
void addPackage(String packageName) {
mCurrentPackage = packageName;
}
void addClass(String className) {
String fqcn = makeJavaClass(mCurrentPackage + "." + className);
mCurrentClass = addClass(fqcn, mApiLevel);
}
void addSuperClass(String superClass) {
mCurrentClass.addSuperClass(makeJavaClass(superClass), mApiLevel);
}
void addInterface(String interfaceClass) {
mCurrentClass.addInterface(makeJavaClass(interfaceClass), mApiLevel);
}
void startNewConstructor() {
mMethodParams.setLength(0);
mMethodName = "<init>";
mMethodReturnType = "V";
}
void startNewMethod(String name, String returnType) {
mMethodParams.setLength(0);
mMethodName = name;
mMethodReturnType = parseType(returnType);
}
void addMethodParameter(String parameter) {
mMethodParams.append(parseType(parameter));
}
void finishMethod() {
addMethod(mMethodName + "(" + mMethodParams.toString() + ")" +
(mMethodReturnType != null ? mMethodReturnType : ""));
}
void addMethod(String methodSignature) {
mCurrentClass.addMethod(methodSignature, mApiLevel);
}
void addField(String fieldName) {
mCurrentClass.addField(fieldName, mApiLevel);
}
void finishClass() {
mCurrentClass = null;
}
void finishPackage() {
finishClass();
mCurrentPackage = null;
}
void done() {
finishPackage();
}
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 String makeJavaClass(String fqcn) {
final int length = fqcn.length();
StringBuilder sb = new StringBuilder(length);
boolean isClass = Character.isUpperCase(fqcn.charAt(0));
for (int i = 0 ; i < length ; i++) {
if (fqcn.charAt(i) == '.') {
if (isClass) {
sb.append('$');
} else {
sb.append('/');
}
if (i < length -1 ) {
isClass = Character.isUpperCase(fqcn.charAt(i+1));
}
} else {
if (fqcn.charAt(i) == '<') {
break;
}
sb.append(fqcn.charAt(i));
}
}
return sb.toString();
}
private String parseType(String type) {
StringBuilder result = new StringBuilder();
if (type.endsWith("...")) {
result.append('[');
type = type.substring(0, type.length() - 3);
}
while (type.endsWith("[]")) {
result.append('[');
type = type.substring(0, type.length() - 2);
}
if ("byte".equals(type)) result.append('B');
else if ("char".equals(type)) result.append('C');
else if ("double".equals(type)) result.append('D');
else if ("float".equals(type)) result.append('F');
else if ("int".equals(type)) result.append('I');
else if ("long".equals(type)) result.append('J');
else if ("short".equals(type)) result.append('S');
else if ("void".equals(type)) result.append('V');
else if ("boolean".equals(type)) result.append('Z');
else {
result.append('L').append(makeJavaClass(type)).append(';');
}
return result.toString();
}
}
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