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    1   /*
    2    * Copyright 2004-2009 the Seasar Foundation and the Others.
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *     http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
    13   * either express or implied. See the License for the specific language
    14   * governing permissions and limitations under the License.
    15   */
    16  package org.seasar.cubby.plugins.s2.detector.impl;
    17
    18  import java.util.HashSet;
    19  import java.util.Set;
    20
    21  import org.seasar.cubby.plugins.s2.detector.ClassDetector;
    22  import org.seasar.cubby.plugins.s2.detector.DetectClassProcessor;
    23  import org.seasar.framework.container.ComponentDef;
    24  import org.seasar.framework.container.cooldeploy.CoolComponentAutoRegister;
    25  import org.seasar.framework.util.ClassUtil;
    26  import org.seasar.framework.util.Disposable;
    27  import org.seasar.framework.util.DisposableUtil;
    28
    29  /**
    30   * クラスパスを走査してクラスを検出するクラスの実装です。
    31   * <p>
    32   * Cool Deploy の挙動と合わせるため、{@link CoolComponentAutoRegister} を継承しています。
    33   * </p>
    34   *
    35   * @author baba
    36   */
    37  public class ClassDetectorImpl extends CoolComponentAutoRegister implements
    38  		ClassDetector, Disposable {
    39
    40  	/** スーパークラスの初期化メソッドをクリアします。 */
    41  	public static final String INIT_METHOD = null;
    42
    43  	/** 初期化フラグ。 */
    44  	private boolean initialized;
    45
    46  	/** 検出されたクラスを処理するクラスの配列です。 */
    47  	private DetectClassProcessor[] processors;
    48
    49  	/** 処理済みのクラス。 */
    50  	private final Set<String> processedClasses = new HashSet<String>();
    51
    52  	/**
    53  	 * {@inheritDoc}
    54  	 */
    55  	@Override
    56  	public void processClass(final String packageName,
    57  			final String shortClassName) {
    58  		final String fqcn = ClassUtil.concatName(packageName, shortClassName);
    59  		if (!processedClasses.contains(fqcn)) {
    60  			processedClasses.add(fqcn);
    61  			for (final DetectClassProcessor processor : processors) {
    62  				processor.processClass(packageName, shortClassName);
    63  			}
    64  		}
    65  	}
    66
    67  	/**
    68  	 * {@inheritDoc}
    69  	 */
    70  	public void detect() {
    71  		if (!initialized) {
    72  			processedClasses.clear();
    73  			processors = (DetectClassProcessor[]) getContainer().getRoot()
    74  					.findAllComponents(DetectClassProcessor.class);
    75  			registerAll();
    76  			processedClasses.clear();
    77  			DisposableUtil.add(this);
    78  			initialized = true;
    79  		}
    80  	}
    81
    82  	/**
    83  	 * {@inheritDoc}
    84  	 */
    85  	public void dispose() {
    86  		initialized = false;
    87  	}
    88
    89  	/**
    90  	 * {@inheritDoc}
    91  	 */
    92  	@SuppressWarnings("unchecked")
    93  	@Override
    94  	protected ComponentDef createComponentDef(final Class componentClass) {
    95  		throw new UnsupportedOperationException();
    96  	}
    97
    98  }