bundles/org.eclipse.swt.tools/JNI Generation/org/eclipse/swt/tools/internal/JNIGenerator.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swt.tools.internal;

 import java.io.*;
 import java.lang.reflect.*;
 import java.util.*;

 import org.eclipse.swt.SWT;

 public abstract class JNIGenerator {

 	Class mainClass;
 	Class[] classes;
 	MetaData metaData;
 	boolean isCPP;
 	String delimiter;
 	PrintStream output;
 	ProgressMonitor progress;

 public JNIGenerator() {
 	delimiter = System.getProperty("line.separator");
 	output = System.out;
 	metaData = new MetaData(new Properties());
 }

 String fixDelimiter(String str) {
 	if (delimiter.equals("\n")) return str;
 	int index = 0, length = str.length();
 	StringBuffer buffer = new StringBuffer();
 	while (index != -1) {
 		int start = index;
 		index = str.indexOf('\n', start);
 		if (index == -1) {
 			buffer.append(str.substring(start, length));
 		} else {
 			buffer.append(str.substring(start, index));
 			buffer.append(delimiter);
 			index++;
 		}
 	}
 	return buffer.toString();
 }

 static String getClassName(Class clazz) {
 	String name = clazz.getName();
 	int index = name.lastIndexOf('.') + 1;
 	return name.substring(index, name.length());
 }

 static String getFunctionName(Method method) {
 	return getFunctionName(method, method.getParameterTypes());
 }

 static String getFunctionName(Method method, Class[] paramTypes) {
 	if ((method.getModifiers() & Modifier.NATIVE) == 0) return method.getName();
 	String function = toC(method.getName());
 	if (!isNativeUnique(method)) {
 		StringBuffer buffer = new StringBuffer();
 		buffer.append(function);
 		buffer.append("__");
 		if (paramTypes.length > 0) {
 			for (int i = 0; i < paramTypes.length; i++) {
 				Class paramType = paramTypes[i];
 				buffer.append(toC(getTypeSignature(paramType)));
 			}
 		}
 		return buffer.toString();
 	}
 	return function;
 }

 static int getByteCount(Class clazz) {
 	if (clazz == Integer.TYPE) return 4;
 	if (clazz == Boolean.TYPE) return 4;
 	if (clazz == Long.TYPE) return 8;
 	if (clazz == Short.TYPE) return 2;
 	if (clazz == Character.TYPE) return 2;
 	if (clazz == Byte.TYPE) return 1;
 	if (clazz == Float.TYPE) return 4;
 	if (clazz == Double.TYPE) return 8;
 	return 4;
 }

 static String getTypeSignature(Class clazz) {
 	if (clazz == Void.TYPE) return "V";
 	if (clazz == Integer.TYPE) return "I";
 	if (clazz == Boolean.TYPE) return "Z";
 	if (clazz == Long.TYPE) return "J";
 	if (clazz == Short.TYPE) return "S";
 	if (clazz == Character.TYPE) return "C";
 	if (clazz == Byte.TYPE) return "B";
 	if (clazz == Float.TYPE) return "F";
 	if (clazz == Double.TYPE) return "D";
 	if (clazz == String.class) return "Ljava/lang/String;";
 	if (clazz.isArray()) {
 		Class componentType = clazz.getComponentType();
 		return "[" + getTypeSignature(componentType);
 	}
 	return "L" + clazz.getName().replace('.', '/') + ";";
 }

 static String getTypeSignature1(Class clazz) {
 	if (clazz == Void.TYPE) return "Void";
 	if (clazz == Integer.TYPE) return "Int";
 	if (clazz == Boolean.TYPE) return "Boolean";
 	if (clazz == Long.TYPE) return "Long";
 	if (clazz == Short.TYPE) return "Short";
 	if (clazz == Character.TYPE) return "Char";
 	if (clazz == Byte.TYPE) return "Byte";
 	if (clazz == Float.TYPE) return "Float";
 	if (clazz == Double.TYPE) return "Double";
 	if (clazz == String.class) return "String";
 	return "Object";
 }

 static String getTypeSignature2(Class clazz) {
 	if (clazz == Void.TYPE) return "void";
 	if (clazz == Integer.TYPE) return "jint";
 	if (clazz == Boolean.TYPE) return "jboolean";
 	if (clazz == Long.TYPE) return "jlong";
 	if (clazz == Short.TYPE) return "jshort";
 	if (clazz == Character.TYPE) return "jchar";
 	if (clazz == Byte.TYPE) return "jbyte";
 	if (clazz == Float.TYPE) return "jfloat";
 	if (clazz == Double.TYPE) return "jdouble";
 	if (clazz == String.class) return "jstring";
 	if (clazz == Class.class) return "jclass";
 	if (clazz.isArray()) {
 		Class componentType = clazz.getComponentType();
 		return getTypeSignature2(componentType) + "Array";
 	}
 	return "jobject";
 }

 static String getTypeSignature3(Class clazz) {
 	if (clazz == Void.TYPE) return "void";
 	if (clazz == Integer.TYPE) return "int";
 	if (clazz == Boolean.TYPE) return "boolean";
 	if (clazz == Long.TYPE) return "long";
 	if (clazz == Short.TYPE) return "short";
 	if (clazz == Character.TYPE) return "char";
 	if (clazz == Byte.TYPE) return "byte";
 	if (clazz == Float.TYPE) return "float";
 	if (clazz == Double.TYPE) return "double";
 	if (clazz == String.class) return "String";
 	if (clazz.isArray()) {
 		Class componentType = clazz.getComponentType();
 		return getTypeSignature3(componentType) + "[]";
 	}
 	return clazz.getName();
 }

 static String getTypeSignature4(Class clazz) {
 	if (clazz == Void.TYPE) return "void";
 	if (clazz == Integer.TYPE) return "jint";
 	if (clazz == Boolean.TYPE) return "jboolean";
 	if (clazz == Long.TYPE) return "jlong";
 	if (clazz == Short.TYPE) return "jshort";
 	if (clazz == Character.TYPE) return "jchar";
 	if (clazz == Byte.TYPE) return "jbyte";
 	if (clazz == Float.TYPE) return "jfloat";
 	if (clazz == Double.TYPE) return "jdouble";
 	if (clazz == String.class) return "jstring";
 	if (clazz.isArray()) {
 		Class componentType = clazz.getComponentType();
 		return getTypeSignature4(componentType) + " *";
 	}
 	return getClassName(clazz) + " *";
 }

 static HashMap uniqueCache = new HashMap();
 static Class uniqueClassCache;
 static Method[] uniqueMethodsCache;
 static synchronized boolean isNativeUnique(Method method) {
 	if ((method.getModifiers() & Modifier.NATIVE) == 0) return false;
 	Object unique = uniqueCache.get(method);
 	if (unique != null) return ((Boolean)unique).booleanValue();
 	boolean result = true;
 	Method[] methods;
 	String name = method.getName();
 	Class clazz = method.getDeclaringClass();
 	if (clazz.equals(uniqueClassCache)) {
 		methods = uniqueMethodsCache;
 	} else {
 		methods = clazz.getDeclaredMethods();
 		uniqueClassCache = clazz;
 		uniqueMethodsCache = methods;
 	}
 	for (int i = 0; i < methods.length; i++) {
 		Method mth = methods[i];
 		if ((mth.getModifiers() & Modifier.NATIVE) != 0 &&
 			method != mth && !method.equals(mth) &&
 			name.equals(mth.getName()))
 			{
 				result = false;
 				break;
 			}
 	}
 	uniqueCache.put(method, new Boolean(result));
 	return result;
 }

 static void sort(Method[] methods) {
 	Arrays.sort(methods, new Comparator() {
 		public int compare(Object a, Object b) {
 			Method mth1 = (Method)a;
 			Method mth2 = (Method)b;
 			int result = mth1.getName().compareTo(mth2.getName());
 			return result != 0 ? result : getFunctionName(mth1).compareTo(getFunctionName(mth2));
 		}
 	});
 }

 static void sort(Field[] fields) {
 	Arrays.sort(fields, new Comparator() {
 		public int compare(Object a, Object b) {
 			return ((Field)a).getName().compareTo(((Field)b).getName());
 		}
 	});
 }

 static void sort(Class[] classes) {
 	Arrays.sort(classes, new Comparator() {
 		public int compare(Object a, Object b) {
 			return ((Class)a).getName().compareTo(((Class)b).getName());
 		}
 	});
 }

 static String toC(String str) {
 	int length = str.length();
 	StringBuffer buffer = new StringBuffer(length * 2);
 	for (int i = 0; i < length; i++) {
 		char c = str.charAt(i);
 		switch (c) {
 			case '_': buffer.append("_1"); break;
 			case ';': buffer.append("_2"); break;
 			case '[': buffer.append("_3"); break;
 			case '.': buffer.append("_"); break;
 			case '/': buffer.append("_"); break;
 			default: buffer.append(c);
 		}
 	}
 	return buffer.toString();
 }

 public abstract void generate(Class clazz);

 public void generateCopyright() {
 }

 public void generateIncludes() {
 }

 public void generate() {
 	if (classes == null) return;
 	generateCopyright();
 	generateIncludes();
 	sort(classes);
 	for (int i = 0; i < classes.length; i++) {
 		Class clazz = classes[i];
 		ClassData data = getMetaData().getMetaData(clazz);
 		if (data.getFlag("cpp")) {
 			isCPP = true;
 			break;
 		}
 	}
 	for (int i = 0; i < classes.length; i++) {
 		Class clazz = classes[i];
 		if (getGenerate(clazz)) generate(clazz);
 		if (progress != null) progress.step();
 	}
 	output.flush();
 }

 public void generateMetaData(String key) {
 	MetaData mt = getMetaData();
 	String data = mt.getMetaData(key, null);
 	if (data == null) return;
 	if (data.length() == 0) return;
 	outputln(fixDelimiter(data));
 }

 public Class[] getClasses() {
 	return classes;
 }

 protected boolean getGenerate(Class clazz) {
 	ClassData data = getMetaData().getMetaData(clazz);
 	return !data.getFlag("no_gen");
 }

 public boolean getCPP() {
 	return isCPP;
 }

 public String getDelimiter() {
 	return delimiter;
 }

 public String getExtension() {
 	return getCPP() ? ".cpp" : ".c";
 }

 public String getFileName() {
 	return getOutputName() + getSuffix() + getExtension();
 }

 public PrintStream getOutput() {
 	return output;
 }

 public String getOutputName() {
 	return getClassName(getMainClass()).toLowerCase();
 }

 public Class getMainClass() {
 	return mainClass;
 }

 public MetaData getMetaData() {
 	return metaData;
 }

 public String getPlatform() {
 	return SWT.getPlatform();
 }

 public ProgressMonitor getProgressMonitor() {
 	return progress;
 }

 public String getSuffix() {
 	return "";
 }

 public void output(String str) {
 	output.print(str);
 }

 public void outputln() {
 	output(getDelimiter());
 }

 public void outputln(String str) {
 	output(str);
 	output(getDelimiter());
 }

 public void setClasses(Class[] classes) {
 	this.classes = classes;
 }

 public void setDelimiter(String delimiter) {
 	this.delimiter = delimiter;
 }

 public void setMainClass(Class mainClass) {
 	this.mainClass = mainClass;
 }

 public void setMetaData(MetaData data) {
 	metaData = data;
 }

 public void setOutput(PrintStream output) {
 	this.output = output;
 }

 public void setProgressMonitor(ProgressMonitor progress) {
 	this.progress = progress;
 }

 }
	/*******************************************************************************
	* Copyright (c) 2004 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.swt.tools.internal;

	import java.io.*;
	import java.lang.reflect.*;
	import java.util.*;

	import org.eclipse.swt.SWT;

	public abstract class JNIGenerator {

	Class mainClass;
	Class[] classes;
	MetaData metaData;
	boolean isCPP;
	String delimiter;
	PrintStream output;
	ProgressMonitor progress;

	public JNIGenerator() {
	delimiter = System.getProperty("line.separator");
	output = System.out;
	metaData = new MetaData(new Properties());
	}

	String fixDelimiter(String str) {
	if (delimiter.equals("\n")) return str;
	int index = 0, length = str.length();
	StringBuffer buffer = new StringBuffer();
	while (index != -1) {
	int start = index;
	index = str.indexOf('\n', start);
	if (index == -1) {
	buffer.append(str.substring(start, length));
	} else {
	buffer.append(str.substring(start, index));
	buffer.append(delimiter);
	index++;
	}
	}
	return buffer.toString();
	}

	static String getClassName(Class clazz) {
	String name = clazz.getName();
	int index = name.lastIndexOf('.') + 1;
	return name.substring(index, name.length());
	}

	static String getFunctionName(Method method) {
	return getFunctionName(method, method.getParameterTypes());
	}

	static String getFunctionName(Method method, Class[] paramTypes) {
	if ((method.getModifiers() & Modifier.NATIVE) == 0) return method.getName();
	String function = toC(method.getName());
	if (!isNativeUnique(method)) {
	StringBuffer buffer = new StringBuffer();
	buffer.append(function);
	buffer.append("__");
	if (paramTypes.length > 0) {
	for (int i = 0; i < paramTypes.length; i++) {
	Class paramType = paramTypes[i];
	buffer.append(toC(getTypeSignature(paramType)));
	}
	}
	return buffer.toString();
	}
	return function;
	}

	static int getByteCount(Class clazz) {
	if (clazz == Integer.TYPE) return 4;
	if (clazz == Boolean.TYPE) return 4;
	if (clazz == Long.TYPE) return 8;
	if (clazz == Short.TYPE) return 2;
	if (clazz == Character.TYPE) return 2;
	if (clazz == Byte.TYPE) return 1;
	if (clazz == Float.TYPE) return 4;
	if (clazz == Double.TYPE) return 8;
	return 4;
	}

	static String getTypeSignature(Class clazz) {
	if (clazz == Void.TYPE) return "V";
	if (clazz == Integer.TYPE) return "I";
	if (clazz == Boolean.TYPE) return "Z";
	if (clazz == Long.TYPE) return "J";
	if (clazz == Short.TYPE) return "S";
	if (clazz == Character.TYPE) return "C";
	if (clazz == Byte.TYPE) return "B";
	if (clazz == Float.TYPE) return "F";
	if (clazz == Double.TYPE) return "D";
	if (clazz == String.class) return "Ljava/lang/String;";
	if (clazz.isArray()) {
	Class componentType = clazz.getComponentType();
	return "[" + getTypeSignature(componentType);
	}
	return "L" + clazz.getName().replace('.', '/') + ";";
	}

	static String getTypeSignature1(Class clazz) {
	if (clazz == Void.TYPE) return "Void";
	if (clazz == Integer.TYPE) return "Int";
	if (clazz == Boolean.TYPE) return "Boolean";
	if (clazz == Long.TYPE) return "Long";
	if (clazz == Short.TYPE) return "Short";
	if (clazz == Character.TYPE) return "Char";
	if (clazz == Byte.TYPE) return "Byte";
	if (clazz == Float.TYPE) return "Float";
	if (clazz == Double.TYPE) return "Double";
	if (clazz == String.class) return "String";
	return "Object";
	}

	static String getTypeSignature2(Class clazz) {
	if (clazz == Void.TYPE) return "void";
	if (clazz == Integer.TYPE) return "jint";
	if (clazz == Boolean.TYPE) return "jboolean";
	if (clazz == Long.TYPE) return "jlong";
	if (clazz == Short.TYPE) return "jshort";
	if (clazz == Character.TYPE) return "jchar";
	if (clazz == Byte.TYPE) return "jbyte";
	if (clazz == Float.TYPE) return "jfloat";
	if (clazz == Double.TYPE) return "jdouble";
	if (clazz == String.class) return "jstring";
	if (clazz == Class.class) return "jclass";
	if (clazz.isArray()) {
	Class componentType = clazz.getComponentType();
	return getTypeSignature2(componentType) + "Array";
	}
	return "jobject";
	}

	static String getTypeSignature3(Class clazz) {
	if (clazz == Void.TYPE) return "void";
	if (clazz == Integer.TYPE) return "int";
	if (clazz == Boolean.TYPE) return "boolean";
	if (clazz == Long.TYPE) return "long";
	if (clazz == Short.TYPE) return "short";
	if (clazz == Character.TYPE) return "char";
	if (clazz == Byte.TYPE) return "byte";
	if (clazz == Float.TYPE) return "float";
	if (clazz == Double.TYPE) return "double";
	if (clazz == String.class) return "String";
	if (clazz.isArray()) {
	Class componentType = clazz.getComponentType();
	return getTypeSignature3(componentType) + "[]";
	}
	return clazz.getName();
	}

	static String getTypeSignature4(Class clazz) {
	if (clazz == Void.TYPE) return "void";
	if (clazz == Integer.TYPE) return "jint";
	if (clazz == Boolean.TYPE) return "jboolean";
	if (clazz == Long.TYPE) return "jlong";
	if (clazz == Short.TYPE) return "jshort";
	if (clazz == Character.TYPE) return "jchar";
	if (clazz == Byte.TYPE) return "jbyte";
	if (clazz == Float.TYPE) return "jfloat";
	if (clazz == Double.TYPE) return "jdouble";
	if (clazz == String.class) return "jstring";
	if (clazz.isArray()) {
	Class componentType = clazz.getComponentType();
	return getTypeSignature4(componentType) + " *";
	}
	return getClassName(clazz) + " *";
	}

	static HashMap uniqueCache = new HashMap();
	static Class uniqueClassCache;
	static Method[] uniqueMethodsCache;
	static synchronized boolean isNativeUnique(Method method) {
	if ((method.getModifiers() & Modifier.NATIVE) == 0) return false;
	Object unique = uniqueCache.get(method);
	if (unique != null) return ((Boolean)unique).booleanValue();
	boolean result = true;
	Method[] methods;
	String name = method.getName();
	Class clazz = method.getDeclaringClass();
	if (clazz.equals(uniqueClassCache)) {
	methods = uniqueMethodsCache;
	} else {
	methods = clazz.getDeclaredMethods();
	uniqueClassCache = clazz;
	uniqueMethodsCache = methods;
	}
	for (int i = 0; i < methods.length; i++) {
	Method mth = methods[i];
	if ((mth.getModifiers() & Modifier.NATIVE) != 0 &&
	method != mth && !method.equals(mth) &&
	name.equals(mth.getName()))
	{
	result = false;
	break;
	}
	}
	uniqueCache.put(method, new Boolean(result));
	return result;
	}

	static void sort(Method[] methods) {
	Arrays.sort(methods, new Comparator() {
	public int compare(Object a, Object b) {
	Method mth1 = (Method)a;
	Method mth2 = (Method)b;
	int result = mth1.getName().compareTo(mth2.getName());
	return result != 0 ? result : getFunctionName(mth1).compareTo(getFunctionName(mth2));
	}
	});
	}

	static void sort(Field[] fields) {
	Arrays.sort(fields, new Comparator() {
	public int compare(Object a, Object b) {
	return ((Field)a).getName().compareTo(((Field)b).getName());
	}
	});
	}

	static void sort(Class[] classes) {
	Arrays.sort(classes, new Comparator() {
	public int compare(Object a, Object b) {
	return ((Class)a).getName().compareTo(((Class)b).getName());
	}
	});
	}

	static String toC(String str) {
	int length = str.length();
	StringBuffer buffer = new StringBuffer(length * 2);
	for (int i = 0; i < length; i++) {
	char c = str.charAt(i);
	switch (c) {
	case '_': buffer.append("_1"); break;
	case ';': buffer.append("_2"); break;
	case '[': buffer.append("_3"); break;
	case '.': buffer.append("_"); break;
	case '/': buffer.append("_"); break;
	default: buffer.append(c);
	}
	}
	return buffer.toString();
	}

	public abstract void generate(Class clazz);

	public void generateCopyright() {
	}

	public void generateIncludes() {
	}

	public void generate() {
	if (classes == null) return;
	generateCopyright();
	generateIncludes();
	sort(classes);
	for (int i = 0; i < classes.length; i++) {
	Class clazz = classes[i];
	ClassData data = getMetaData().getMetaData(clazz);
	if (data.getFlag("cpp")) {
	isCPP = true;
	break;
	}
	}
	for (int i = 0; i < classes.length; i++) {
	Class clazz = classes[i];
	if (getGenerate(clazz)) generate(clazz);
	if (progress != null) progress.step();
	}
	output.flush();
	}

	public void generateMetaData(String key) {
	MetaData mt = getMetaData();
	String data = mt.getMetaData(key, null);
	if (data == null) return;
	if (data.length() == 0) return;
	outputln(fixDelimiter(data));
	}

	public Class[] getClasses() {
	return classes;
	}

	protected boolean getGenerate(Class clazz) {
	ClassData data = getMetaData().getMetaData(clazz);
	return !data.getFlag("no_gen");
	}

	public boolean getCPP() {
	return isCPP;
	}

	public String getDelimiter() {
	return delimiter;
	}

	public String getExtension() {
	return getCPP() ? ".cpp" : ".c";
	}

	public String getFileName() {
	return getOutputName() + getSuffix() + getExtension();
	}

	public PrintStream getOutput() {
	return output;
	}

	public String getOutputName() {
	return getClassName(getMainClass()).toLowerCase();
	}

	public Class getMainClass() {
	return mainClass;
	}

	public MetaData getMetaData() {
	return metaData;
	}

	public String getPlatform() {
	return SWT.getPlatform();
	}

	public ProgressMonitor getProgressMonitor() {
	return progress;
	}

	public String getSuffix() {
	return "";
	}

	public void output(String str) {
	output.print(str);
	}

	public void outputln() {
	output(getDelimiter());
	}

	public void outputln(String str) {
	output(str);
	output(getDelimiter());
	}

	public void setClasses(Class[] classes) {
	this.classes = classes;
	}

	public void setDelimiter(String delimiter) {
	this.delimiter = delimiter;
	}

	public void setMainClass(Class mainClass) {
	this.mainClass = mainClass;
	}

	public void setMetaData(MetaData data) {
	metaData = data;
	}

	public void setOutput(PrintStream output) {
	this.output = output;
	}

	public void setProgressMonitor(ProgressMonitor progress) {
	this.progress = progress;
	}

	}