org.hibnet.webpipes.processor.yui.YuiProxy Maven / Gradle / Ivy
package org.hibnet.webpipes.processor.yui;
import java.io.Reader;
import java.io.Writer;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
class YuiProxy {
static final YuiProxy Instance = new YuiProxy();
private URLClassLoader cl;
private Constructor jsCompressorConstructor;
private Method jsCompressMethod;
private Constructor cssCompressorConstructor;
private Method cssCompressMethod;
public YuiProxy() {
cl = new URLClassLoader(new URL[] { this.getClass().getResource("jar/yuicompressor-2.4.8.jar") });
try {
Class jsCompressorClass = cl.loadClass("com.yahoo.platform.yui.compressor.JavaScriptCompressor");
Class errorReporterClass = cl.loadClass("org.mozilla.javascript.ErrorReporter");
jsCompressorConstructor = jsCompressorClass.getConstructor(Reader.class, errorReporterClass);
jsCompressMethod = jsCompressorClass.getMethod("compress", Writer.class, Integer.TYPE, Boolean.TYPE, Boolean.TYPE, Boolean.TYPE,
Boolean.TYPE);
Class cssCompressorClass = cl.loadClass("com.yahoo.platform.yui.compressor.CssCompressor");
cssCompressorConstructor = cssCompressorClass.getConstructor(Reader.class);
cssCompressMethod = cssCompressorClass.getMethod("compress", Writer.class, Integer.TYPE);
} catch (ClassNotFoundException | NoSuchMethodException | SecurityException e) {
throw new RuntimeException(e);
}
}
public String compressJavascript(Reader reader, Writer writer, int linebreak, boolean munge, boolean verbose, boolean preserveAllSemiColons,
boolean disableOptimizations) {
Object res;
try {
Object jsCompressor = jsCompressorConstructor.newInstance(reader, null);
res = jsCompressMethod.invoke(jsCompressor, writer, linebreak, munge, verbose, preserveAllSemiColons, disableOptimizations);
} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
throw new RuntimeException(e);
}
return (String) res;
}
public String compressCSS(Reader reader, Writer writer, int linebreak) {
Object res;
try {
Object cssCompressor = cssCompressorConstructor.newInstance(reader);
res = cssCompressMethod.invoke(cssCompressor, writer, linebreak);
} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
throw new RuntimeException(e);
}
return (String) res;
}
}