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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.dubbo.metadata.definition.model;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Objects;

import static org.apache.dubbo.metadata.definition.model.TypeDefinition.formatType;
import static org.apache.dubbo.metadata.definition.model.TypeDefinition.formatTypes;

/**
 * 2015/1/27.
 */
public class MethodDefinition implements Serializable {

    private String name;
    private String[] parameterTypes;
    private String returnType;

    /**
     * @deprecated please use parameterTypes,
     * and find TypeDefinition in org.apache.dubbo.metadata.definition.model.ServiceDefinition#types
     */
    @Deprecated
    private List parameters;

    private List annotations;

    public String getName() {
        return name;
    }

    public List getParameters() {
        if (parameters == null) {
            parameters = new ArrayList<>();
        }
        return parameters;
    }

    public String[] getParameterTypes() {
        return parameterTypes;
    }

    public String getReturnType() {
        return returnType;
    }

    public void setName(String name) {
        this.name = name;
    }

    public void setParameters(List parameters) {
        this.parameters = parameters;
    }

    public void setParameterTypes(String[] parameterTypes) {
        this.parameterTypes = formatTypes(parameterTypes);
    }

    public void setReturnType(String returnType) {
        this.returnType = formatType(returnType);
    }

    public List getAnnotations() {
        if (annotations == null) {
            annotations = Collections.emptyList();
        }
        return annotations;
    }

    public void setAnnotations(List annotations) {
        this.annotations = annotations;
    }

    @Override
    public String toString() {
        return "MethodDefinition [name=" + name + ", parameterTypes=" + Arrays.toString(parameterTypes)
                + ", returnType=" + returnType + "]";
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof MethodDefinition)) {
            return false;
        }
        MethodDefinition that = (MethodDefinition) o;
        return Objects.equals(getName(), that.getName())
                && Arrays.equals(getParameterTypes(), that.getParameterTypes())
                && Objects.equals(getReturnType(), that.getReturnType());
    }

    @Override
    public int hashCode() {
        return Objects.hash(getName(), getReturnType(), Arrays.toString(getParameterTypes()));
    }
}