org.jboss.weld.introspector.jlr.MethodSignatureImpl Maven / Gradle / Ivy

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2008, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jboss.weld.introspector.jlr;

import org.jboss.weld.introspector.MethodSignature;
import org.jboss.weld.introspector.WeldMethod;
import org.jboss.weld.util.collections.Arrays2;

import java.lang.reflect.Method;
import java.util.Arrays;

public class MethodSignatureImpl implements MethodSignature {

    private static final long serialVersionUID = 870948075030895317L;

    private final String methodName;
    private final String[] parameterTypes;

    public MethodSignatureImpl(WeldMethod method) {
        this.methodName = method.getName();
        this.parameterTypes = new String[method.getWeldParameters().size()];
        for (int i = 0; i < method.getWeldParameters().size(); i++) {
            parameterTypes[i] = method.getWeldParameters().get(i).getJavaClass().getName();
        }
    }

    public MethodSignatureImpl(Method method) {
        this.methodName = method.getName();
        this.parameterTypes = new String[method.getParameterTypes().length];
        for (int i = 0; i < method.getParameterTypes().length; i++) {
            parameterTypes[i] = method.getParameterTypes()[i].getName();
        }

    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof MethodSignatureImpl) {
            MethodSignature that = (MethodSignature) obj;
            return this.getMethodName().equals(that.getMethodName()) && Arrays.equals(this.getParameterTypes(), that.getParameterTypes());
        } else {
            return false;
        }
    }

    @Override
    public int hashCode() {
        int hashCode = 17;
        hashCode += methodName.hashCode() * 5;
        hashCode += Arrays.hashCode(parameterTypes) * 7;
        return hashCode;
    }

    public String getMethodName() {
        return methodName;
    }

    public String[] getParameterTypes() {
        return Arrays2.copyOf(parameterTypes, parameterTypes.length);
    }

    @Override
    public String toString() {
        return new StringBuffer().append("method ").append(getMethodName()).append(Arrays.toString(getParameterTypes()).replace('[', '(').replace(']', ')')).toString();
    }

}