// Based on the example from http://www.java2s.com/Code/Java/JDK-6/CompilingfromMemory.htm
package javaCompile;
import java.net.URI;
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
import java.lang.String;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.StandardJavaFileManager;
import javax.tools.ToolProvider;
import javax.tools.JavaFileObject.Kind;
public class CompileSourceInMemory {
public static boolean CompileFromMemory(String strClass, String strCodeContent) {
String[] classNames = { strClass };
String[] codeContent = { strCodeContent };
return CompileFromMemory(classNames, codeContent, null);
}
public static boolean CompileFromMemory(String[] classNames, String[] codeContent) {
return CompileFromMemory(classNames, codeContent, null);
}
public static boolean CompileFromMemory(String[] classNames, String[] codeContent, String[] compOptions) {
List<String> compOptList = null;
if (compOptions != null) { compOptList = Arrays.asList(compOptions); }
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
// Need to add a check that classNames.length == codeContent.length, else we're fubared.
List<JavaFileObject> files = new ArrayList<JavaFileObject> () ;
int i = 0;
for (String codePage : codeContent) {
files.add(new JavaSourceFromString(classNames[i], codePage));
i++;
}
Iterable<? extends JavaFileObject> compilationUnits = files;
JavaCompiler.CompilationTask task = compiler.getTask(null, null, null, compOptList, null, compilationUnits);
boolean success = task.call();
return success;
}
}
class JavaSourceFromString extends SimpleJavaFileObject {
final String code;
JavaSourceFromString(String name, String code) {
super(URI.create("string:///" + name.replace('.','/') + Kind.SOURCE.extension),Kind.SOURCE);
this.code = code;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return code;
}
}