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• RelationGetterConfigureScanner.java

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net.imadz.lifecycle.meta.builder.impl.helpers.RelationGetterConfigureScanner Maven / Gradle / Ivy

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright (c) 2013-2020 Madz. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License"). You
 * may not use this file except in compliance with the License. You can
 * obtain a copy of the License at
 * https://raw.github.com/zhongdj/Lifecycle/master/License.txt
 * . See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 * 
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 * 
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license." If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above. However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
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package net.imadz.lifecycle.meta.builder.impl.helpers;

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

import net.imadz.lifecycle.annotations.LifecycleMeta;
import net.imadz.lifecycle.annotations.relation.Relation;
import net.imadz.lifecycle.meta.builder.impl.StateMachineObjectBuilderImpl;
import net.imadz.lifecycle.meta.object.RelationObject;
import net.imadz.lifecycle.meta.object.StateMachineObject;
import net.imadz.lifecycle.meta.type.RelationMetadata;
import net.imadz.lifecycle.meta.type.StateMachineMetadata;
import net.imadz.util.MethodScanCallback;
import net.imadz.util.StringUtil;
import net.imadz.utils.Null;
import net.imadz.verification.VerificationException;
import net.imadz.verification.VerificationFailureSet;

public final class RelationGetterConfigureScanner implements MethodScanCallback {

    private final StateMachineObjectBuilderImpl stateMachineObjectBuilderImpl;
    final private StateMachineObject stateMachineObject;
    private final VerificationFailureSet failureSet;
    private final Class klass;
    final ArrayList extendedRelationMetadata;

    public RelationGetterConfigureScanner(Class klass, StateMachineObjectBuilderImpl stateMachineObjectBuilderImpl,
            StateMachineObject stateMachineObject, VerificationFailureSet failureSet, final ArrayList extendedRelationMetadata) {
        super();
        this.klass = klass;
        this.stateMachineObjectBuilderImpl = stateMachineObjectBuilderImpl;
        this.stateMachineObject = stateMachineObject;
        this.failureSet = failureSet;
        this.extendedRelationMetadata = extendedRelationMetadata;
    }

    @Override
    public boolean onMethodFound(Method method) {
        if (method.isBridge()) return false;
        if ( null == method.getAnnotation(Relation.class) ) {
            return false;
        }
        try {
            final StateMachineMetadata relatedStateMachine = this.stateMachineObjectBuilderImpl.getMetaType().getRegistry()
                    .loadStateMachineMetadata(method.getDeclaringClass().getAnnotation(LifecycleMeta.class).value());
            final Object relationKey = getRelationKeyFromProperty(method);
            final RelationObjectConfigure configure = new RelationObjectConfigure(method.getDeclaringClass(), extendedRelationMetadata,
                    this.stateMachineObjectBuilderImpl);
            final RelationObject relationObject = configure.configure(relatedStateMachine, relationKey, method);
            if ( null == relationObject ) {
                return false;
            } else {
                this.stateMachineObjectBuilderImpl.addRelation(method.getDeclaringClass(), relationObject, relationObject.getMetaType().getPrimaryKey());
            }
        } catch (VerificationException e) {
            failureSet.add(e);
        }
        return false;
    }

    private Object getRelationKeyFromProperty(Method method) {
        final Class relationClass = method.getAnnotation(Relation.class).value();
        if ( Null.class == relationClass ) {
            if ( method.getName().startsWith("get") ) {
                return StringUtil.toUppercaseFirstCharacter(method.getName().substring(3));
            } else {
                return StringUtil.toUppercaseFirstCharacter(method.getName());
            }
        } else {
            return relationClass;
        }
    }
}