CheckRemovedMethod.java

/*
 * Copyright 2011 William Bernardet
 *
 * 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 com.googlecode.japi.checker.rules;

import com.googlecode.japi.checker.Reporter;
import com.googlecode.japi.checker.RuleHelpers;
import com.googlecode.japi.checker.Severity;
import com.googlecode.japi.checker.Reporter.Report;
import com.googlecode.japi.checker.model.ClassData;
import com.googlecode.japi.checker.model.JavaItem;
import com.googlecode.japi.checker.model.MethodData;
import com.googlecode.japi.checker.Rule;
import com.googlecode.japi.checker.Scope;

public class CheckRemovedMethod implements Rule {

    @Override
    public void checkBackwardCompatibility(Reporter reporter,
            JavaItem reference, JavaItem newItem) {
        if (reference instanceof ClassData) {
            ClassData referenceClass = (ClassData)reference;
            ClassData newClass = (ClassData)newItem;
            // Let's check that any method implemented by the reference class
            for (MethodData oldMethod : referenceClass.getMethods()) {
                boolean found = false;
                // Are still implemented either by the class or its super. 
                for (MethodData newMethod: RuleHelpers.getClassMethodRecursive(newClass)) {
                    if (oldMethod.isSame(newMethod)) {
                        found = true;
                        break;
                    }
                }
                if (!found && oldMethod.getVisibility().isMoreVisibleThan(Scope.NO_SCOPE)) {
                	reporter.report(new Report(Severity.ERROR, "Could not find " + oldMethod + " in newer version.", reference, newItem));
                }
            }
        }
    }
    
}