com.glaf.core.util.AnnotationUtils.java Source code

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Here is the source code for com.glaf.core.util.AnnotationUtils.java

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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 com.glaf.core.util;

import java.net.URL;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.scannotation.AnnotationDB;
import org.scannotation.ClasspathUrlFinder;

public class AnnotationUtils {

    private static final Log logger = LogFactory.getLog(AnnotationUtils.class);

    public static Collection<String> findClasses(String name) {
        AnnotationDB db = getAnnotationDB();
        Map<String, Set<String>> annotationIndex = db.getAnnotationIndex();
        Set<String> entities = annotationIndex.get(name);
        Collection<String> sortSet = new TreeSet<String>();
        if (entities != null && !entities.isEmpty()) {
            for (String str : entities) {
                sortSet.add(str);
            }
        }
        return sortSet;
    }

    public static Collection<String> findJPAEntity(String packagePrefix) {
        AnnotationDB db = getAnnotationDB(packagePrefix);
        Map<String, Set<String>> annotationIndex = db.getAnnotationIndex();
        Set<String> entities = annotationIndex.get("javax.persistence.Entity");
        Collection<String> sortSet = new TreeSet<String>();
        if (entities != null && !entities.isEmpty()) {
            for (String str : entities) {
                if (packagePrefix != null && str.contains(packagePrefix)) {
                    sortSet.add(str);
                }
            }
        }
        return sortSet;
    }

    public static Collection<String> findMapper(String packagePrefix) {
        AnnotationDB db = getAnnotationDB(packagePrefix);
        Map<String, Set<String>> annotationIndex = db.getAnnotationIndex();
        Set<String> entities = annotationIndex.get("org.springframework.stereotype.Component");
        Collection<String> sortSet = new TreeSet<String>();
        if (entities != null && !entities.isEmpty()) {
            for (String str : entities) {
                if (packagePrefix != null && str.contains(packagePrefix) && StringUtils.contains(str, ".mapper.")) {
                    sortSet.add(str);
                }
            }
        }
        return sortSet;
    }

    public static AnnotationDB getAnnotationDB() {
        AnnotationDB db = new AnnotationDB();
        db.setScanClassAnnotations(true);
        db.addIgnoredPackages("org");
        URL url = ClasspathUrlFinder.findClassBase(AnnotationUtils.class);
        try {
            db.scanArchives(url);
        } catch (Exception ex) {
            ex.printStackTrace();
            throw new RuntimeException(ex);
        }
        return db;
    }

    public static AnnotationDB getAnnotationDB(String packagePrefix) {
        AnnotationDB db = new AnnotationDB();
        db.addIgnoredPackages("org");
        db.setScanClassAnnotations(true);
        String[] scanPackages = new String[1];
        scanPackages[0] = packagePrefix;
        db.setScanPackages(scanPackages);
        URL url = ClasspathUrlFinder.findClassBase(AnnotationUtils.class);
        try {
            logger.debug("scan url:" + url.toURI().toString());
            db.scanArchives(url);
            URL[] urls = ClasspathUrlFinder.findClassPaths();
            for (URL url2 : urls) {
                logger.debug("scan url:" + url2.toURI().toString());
                db.scanArchives(url2);
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            throw new RuntimeException(ex);
        }

        return db;
    }

    public static void main(String[] args) throws Exception {
        System.out.println(System.getProperty("java.class.path"));
        long start = System.currentTimeMillis();
        Collection<String> entities = AnnotationUtils.findMapper("com.glaf");
        long time = System.currentTimeMillis() - start;
        for (String str : entities) {
            System.out.println(str);
        }
        System.out.println("time:" + time);
        URL[] urls = ClasspathUrlFinder.findResourceBases("com/glaf/package.properties",
                Thread.currentThread().getContextClassLoader());
        for (URL url2 : urls) {
            logger.debug("->scan url:" + url2.toURI().toString());
        }
    }

    private AnnotationUtils() {

    }

}