Example usage for com.google.common.io Resources toByteArray

Introduction

In this page you can find the example usage for com.google.common.io Resources toByteArray.

Prototype

public static byte[] toByteArray(URL url) throws IOException

Source Link

Document

Reads all bytes from a URL into a byte array.

Usage

From source file:org.glowroot.agent.weaving.ClassAnalyzer.java

private static List<AnalyzedMethodKey> getNonAbstractMethods(String className, @Nullable ClassLoader loader)
        throws ClassNotFoundException, IOException {
    String path = ClassNames.toInternalName(className) + ".class";
    URL url;/* www  .  ja v  a2  s . c  o m*/
    if (loader == null) {
        // null loader means the bootstrap class loader
        url = ClassLoader.getSystemResource(path);
    } else {
        url = loader.getResource(path);
    }
    if (url == null) {
        // what follows is just a best attempt in the sort-of-rare case when a custom class
        // loader does not expose .class file contents via getResource(), e.g.
        // org.codehaus.groovy.runtime.callsite.CallSiteClassLoader
        return getNonAbstractMethodsPlanB(className, loader);
    }
    byte[] bytes = Resources.toByteArray(url);
    NonAbstractMethodClassVisitor accv = new NonAbstractMethodClassVisitor();
    new ClassReader(bytes).accept(accv, ClassReader.SKIP_FRAMES + ClassReader.SKIP_CODE);
    return accv.analyzedMethodKeys;
}