/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* 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:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.inject;
import com.google.inject.matcher.AbstractMatcher;
import com.google.inject.matcher.Matcher;
import org.aopalliance.intercept.MethodInterceptor;
import java.lang.reflect.Method;
import static java.util.Objects.requireNonNull;
/**
* Matcher implementations. Supports matching methods.
* It can be used for binding of {@link MethodInterceptor}.
* <p/>
* Example of usage:
* <code> bindInterceptor(com.google.inject.matcher.Matchers.subclassesOf(SomeClass.class), Matcher.names("getInstance"), new MethodInterceptor() {...});} </code>
*
* @author Sergii Leschenko
*/
public class Matchers {
private Matchers() {}
/**
* Returns a matcher which matches methods with matching name.
*/
public static Matcher<Method> names(String methodName) {
return new Names(methodName);
}
private static class Names extends AbstractMatcher<Method> {
private String methodName;
private Names(String methodName) {
requireNonNull(methodName, "methodName");
this.methodName = methodName;
}
@Override
public boolean matches(Method m) {
return m.getName().equals(methodName);
}
@Override
public boolean equals(Object other) {
return other == this ||
other instanceof Names && ((Names)other).methodName.equals(methodName);
}
@Override
public int hashCode() {
return 37 * methodName.hashCode();
}
@Override
public String toString() {
return "names(" + methodName + ")";
}
}
}