1 files changed, 56 insertions, 0 deletions
diff --git a/src/lombok/javac/apt/PKG.java b/src/lombok/javac/apt/PKG.java
new file mode 100644
index 00000000..2ecf1c7a
--- /dev/null
+++ b/src/lombok/javac/apt/PKG.java
@@ -0,0 +1,56 @@
+package lombok.javac.apt;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import lombok.Lombok;
+
+
+class PKG {
+	private PKG() {}
+	
+	static boolean isInstanceOf(Object o, String className) {
+		if ( o == null ) return false;
+		return isInstanceOf(o.getClass(), className);
+	}
+	
+	static boolean isInstanceOf(Class<?> c, String className) {
+		if ( c == Object.class || c == null ) return false;
+		
+		if ( c.getName().equals(className) ) return true;
+		
+		if ( isInstanceOf(c.getSuperclass(), className) ) return true;
+		for ( Class<?> iface : c.getInterfaces() ) {
+			if ( isInstanceOf(iface, className) ) return true;
+		}
+		
+		return false;
+	}
+	
+	static byte[] readResource(String name) {
+		return readResource(PKG.class.getClassLoader(), name);
+	}
+	
+	static byte[] readResource(ClassLoader loader, String name) {
+		InputStream in = loader.getResourceAsStream(name);
+		if ( in == null ) throw Lombok.sneakyThrow(new IOException("Not found: " + name));
+		
+		try {
+			return readStream(in);
+		} catch (IOException e) {
+			throw Lombok.sneakyThrow(e);
+		}
+	}
+	
+	static byte[] readStream(InputStream in) throws IOException {
+		ByteArrayOutputStream baos = new ByteArrayOutputStream();
+		byte[] b = new byte[65536];
+		while ( true ) {
+			int r = in.read(b);
+			if ( r == -1 ) break;
+			if ( r > 0 ) baos.write(b, 0, r);
+		}
+		return baos.toByteArray();
+	}
+}