All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.apache.openjpa.persistence.PersistenceProductDerivation Maven / Gradle / Ivy

There is a newer version: 4.0.1
Show newest version
/*
 * 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.openjpa.persistence;

import java.io.File;
import java.io.IOException;
import java.math.BigDecimal;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedActionException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.MissingResourceException;
import java.util.Set;

import javax.persistence.SharedCacheMode;
import javax.persistence.ValidationMode;
import javax.persistence.spi.PersistenceUnitInfo;
import javax.persistence.spi.PersistenceUnitTransactionType;

import org.apache.openjpa.conf.Compatibility;
import org.apache.openjpa.conf.OpenJPAConfiguration;
import org.apache.openjpa.conf.OpenJPAConfigurationImpl;
import org.apache.openjpa.conf.OpenJPAProductDerivation;
import org.apache.openjpa.conf.Specification;
import org.apache.openjpa.datacache.DataCacheMode;
import org.apache.openjpa.kernel.MixedLockLevels;
import org.apache.openjpa.kernel.QueryHints;
import org.apache.openjpa.lib.conf.AbstractProductDerivation;
import org.apache.openjpa.lib.conf.Configuration;
import org.apache.openjpa.lib.conf.ConfigurationProvider;
import org.apache.openjpa.lib.conf.Configurations;
import org.apache.openjpa.lib.conf.MapConfigurationProvider;
import org.apache.openjpa.lib.conf.ProductDerivations;
import org.apache.openjpa.lib.log.Log;
import org.apache.openjpa.lib.meta.XMLMetaDataParser;
import org.apache.openjpa.lib.meta.XMLVersionParser;
import org.apache.openjpa.lib.util.J2DoPrivHelper;
import org.apache.openjpa.lib.util.Localizer;
import org.apache.openjpa.lib.util.MultiClassLoader;
import org.apache.openjpa.lib.util.StringUtil;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;


/**
 * Sets JPA specification defaults and parses JPA specification XML files.
 *
 * For globals, looks in openjpa.properties system property for
 * the location of a file to parse. If no system property is defined, the
 * default resource location of META-INF/openjpa.xml is used.
 *
 * For defaults, looks for META-INF/persistence.xml.
 * Within persistence.xml, look for the named persistence unit, or
 * if no name given, an OpenJPA unit (preferring an unnamed OpenJPA unit to
 * a named one).
 *
 * @author Abe White
 */
public class PersistenceProductDerivation
    extends AbstractProductDerivation
    implements OpenJPAProductDerivation {

    public static final Specification SPEC_JPA = new Specification("jpa 2");
    public static final Specification ALIAS_EJB = new Specification("ejb 3");
    public static final String RSRC_GLOBAL = "META-INF/openjpa.xml";
    public static final String RSRC_DEFAULT = "META-INF/persistence.xml";
    public static final BigDecimal VERSION_1_0 = BigDecimal.valueOf(1.0);

    private static final Localizer _loc = Localizer.forPackage
        (PersistenceProductDerivation.class);

    private HashMap _puNameCollisions
        = new HashMap<>();

    public static final String PREFIX = "javax.persistence";

    // These are properties that are invalid to be configured at the provider level.
    private static final String[] _invalidPersistenceProperties =
        new String[] { PREFIX + ".cache.storeMode", PREFIX + ".cache.retrieveMode" };

    private static Set _hints = new HashSet<>();

    // Provider name to filter out PUs that don't belong to this derivation.
    protected String _providerImplName;

    static {
        _hints.add("javax.persistence.lock.timeout");
        _hints.add("javax.persistence.query.timeout");

        _hints.add("openjpa.FetchPlan.ExtendedPathLookup");
        _hints.add("openjpa.FetchBatchSize");
        _hints.add("openjpa.FetchPlan.FetchBatchSize");
        _hints.add("openjpa.MaxFetchDepth");
        _hints.add("openjpa.FetchPlan.MaxFetchDepth");
        _hints.add("openjpa.LockTimeout");
        _hints.add("openjpa.FetchPlan.LockTimeout");
        _hints.add("openjpa.QueryTimeout");
        _hints.add("openjpa.FetchPlan.QueryTimeout");
        _hints.add("openjpa.FlushBeforeQueries");
        _hints.add("openjpa.FetchPlan.FlushBeforeQueries");
        _hints.add("openjpa.ReadLockLevel");
        _hints.add("openjpa.FetchPlan.ReadLockLevel");
        _hints.add("openjpa.WriteLockLevel");
        _hints.add("openjpa.FetchPlan.WriteLockLevel");
        _hints.add("openjpa.FetchPlan.FetchBatchSize");
        _hints.add("openjpa.FetchPlan.LockScope");
        _hints.add("openjpa.FetchPlan.LockTimeout");
        _hints.add("openjpa.FetchPlan.MaxFetchDepth");
        _hints.add("openjpa.FetchPlan.QueryTimeout");
        _hints.add("openjpa.FetchPlan.ReadLockMode");
        _hints.add("openjpa.FetchPlan.WriteLockMode");
        _hints.add(QueryHints.HINT_AGGREGATE_LISTENER);
        _hints.add(QueryHints.HINT_AGGREGATE_LISTENERS);
        _hints.add(QueryHints.HINT_FILTER_LISTENER);
        _hints.add(QueryHints.HINT_FILTER_LISTENERS);
        _hints.add(QueryHints.HINT_IGNORE_FINDER);
        _hints.add(QueryHints.HINT_IGNORE_PREPARED_QUERY);
        _hints.add(QueryHints.HINT_INVALIDATE_FINDER);
        _hints.add(QueryHints.HINT_INVALIDATE_PREPARED_QUERY);
        _hints.add(QueryHints.HINT_PARAM_MARKER_IN_QUERY);
        _hints.add(QueryHints.HINT_RECACHE_FINDER);
        _hints.add(QueryHints.HINT_RESULT_COUNT);
        _hints.add(QueryHints.HINT_SUBCLASSES);
        _hints.add(QueryHints.HINT_RELAX_BIND_PARAM_TYPE_CHECK);
        _hints.add(QueryHints.HINT_USE_LITERAL_IN_SQL);

        _hints = Collections.unmodifiableSet(_hints);
    }

	public PersistenceProductDerivation() {
		_providerImplName = PersistenceProviderImpl.class.getName();
	}

    @Override
    public void putBrokerFactoryAliases(Map m) {
    }

    @Override
    public int getType() {
        return TYPE_SPEC;
    }

    @Override
    public String getConfigurationPrefix() {
        return PREFIX;
    }

    @Override
    public Set getSupportedQueryHints() {
        return _hints;
    }

    @Override
    public void validate()
        throws Exception {
        // make sure JPA is available
        AccessController.doPrivileged(J2DoPrivHelper.getClassLoaderAction(
            javax.persistence.EntityManagerFactory.class));
    }

    @Override
    public boolean beforeConfigurationLoad(Configuration c) {
        if (!(c instanceof OpenJPAConfigurationImpl))
            return false;

        OpenJPAConfigurationImpl conf = (OpenJPAConfigurationImpl) c;
        conf.metaFactoryPlugin.setAlias(ALIAS_EJB.getName(), PersistenceMetaDataFactory.class.getName());
        conf.metaFactoryPlugin.setAlias(SPEC_JPA.getName(),  PersistenceMetaDataFactory.class.getName());

        conf.addValue(new EntityManagerFactoryValue());

        conf.readLockLevel.setAlias("optimistic", String.valueOf(MixedLockLevels.LOCK_OPTIMISTIC));
        conf.readLockLevel.setAlias("optimistic-force-increment", String
            .valueOf(MixedLockLevels.LOCK_OPTIMISTIC_FORCE_INCREMENT));
        conf.readLockLevel.setAlias("pessimistic-read", String
            .valueOf(MixedLockLevels.LOCK_PESSIMISTIC_READ));
        conf.readLockLevel.setAlias("pessimistic-write", String
            .valueOf(MixedLockLevels.LOCK_PESSIMISTIC_WRITE));
        conf.readLockLevel.setAlias("pessimistic-force-increment", String
            .valueOf(MixedLockLevels.LOCK_PESSIMISTIC_FORCE_INCREMENT));

        conf.writeLockLevel.setAlias("optimistic", String
            .valueOf(MixedLockLevels.LOCK_OPTIMISTIC));
        conf.writeLockLevel.setAlias("optimistic-force-increment", String
            .valueOf(MixedLockLevels.LOCK_OPTIMISTIC_FORCE_INCREMENT));
        conf.writeLockLevel.setAlias("pessimistic-read", String
            .valueOf(MixedLockLevels.LOCK_PESSIMISTIC_READ));
        conf.writeLockLevel.setAlias("pessimistic-write", String
            .valueOf(MixedLockLevels.LOCK_PESSIMISTIC_WRITE));
        conf.writeLockLevel.setAlias("pessimistic-force-increment", String
            .valueOf(MixedLockLevels.LOCK_PESSIMISTIC_FORCE_INCREMENT));


        configureBeanValidation(conf);

        conf.dataCacheMode = conf.addString(JPAProperties.CACHE_MODE);
        conf.dataCacheMode.setDefault(DataCacheMode.UNSPECIFIED.toString());
        conf.dataCacheMode.set(DataCacheMode.UNSPECIFIED.toString());

        return true;
    }

    /**
     * Bean Validation configuration is unusual because its usage of enums and keys that
     * do not have counterparts in kernel.
     * Hence the plugins are defined in product derivation instead of the kernel's
     * core configuration.
     *
     * @param conf
     */
    private void configureBeanValidation(OpenJPAConfigurationImpl conf) {
        // Validation defines/adds the following plugins to OpenJPA Configuration
        conf.validationFactory         = conf.addObject(JPAProperties.VALIDATE_FACTORY);
        conf.validator                 = conf.addObject("Validator");
        conf.validationMode            = conf.addString(JPAProperties.VALIDATE_MODE);
        conf.validationGroupPrePersist = conf.addString(JPAProperties.VALIDATE_PRE_PERSIST);
        conf.validationGroupPreUpdate  = conf.addString(JPAProperties.VALIDATE_PRE_UPDATE);
        conf.validationGroupPreRemove  = conf.addString(JPAProperties.VALIDATE_PRE_REMOVE);

        conf.validationMode.setDynamic(true);
        String[] aliases = new String[] {
                String.valueOf(ValidationMode.AUTO),
                String.valueOf(ValidationMode.AUTO).toLowerCase(Locale.ENGLISH),
                String.valueOf(ValidationMode.CALLBACK),
                String.valueOf(ValidationMode.CALLBACK).toLowerCase(Locale.ENGLISH),
                String.valueOf(ValidationMode.NONE),
                String.valueOf(ValidationMode.NONE).toLowerCase(Locale.ENGLISH)
        };
        conf.validationMode.setAliases(aliases);
        conf.validationMode.setAliasListComprehensive(true);
        conf.validationMode.setDefault(aliases[0]);

        conf.validationGroupPrePersist.setString(JPAProperties.VALIDATE_GROUP_DEFAULT);
        conf.validationGroupPrePersist.setDefault("");
        conf.validationGroupPrePersist.setDynamic(true);

        conf.validationGroupPreUpdate.setString(JPAProperties.VALIDATE_GROUP_DEFAULT);
        conf.validationGroupPreUpdate.setDefault("");
        conf.validationGroupPreUpdate.setDynamic(true);

        conf.validationGroupPreRemove.setDefault("");
        conf.validationGroupPreRemove.setDynamic(true);

        conf.validationFactory.setInstantiatingGetter("getValidationFactoryInstance");
        conf.validationFactory.setDynamic(true);

        conf.validator.setInstantiatingGetter("getValidatorInstance");
        conf.validator.setDynamic(true);
        conf.validator.makePrivate();
    }

    @Override
    public boolean afterSpecificationSet(Configuration c) {
        if (!OpenJPAConfigurationImpl.class.isInstance(c)
         && !SPEC_JPA.isSame(((OpenJPAConfiguration) c).getSpecification()))
            return false;

        OpenJPAConfigurationImpl conf = (OpenJPAConfigurationImpl) c;
        conf.metaFactoryPlugin.setDefault(SPEC_JPA.getName());
        conf.metaFactoryPlugin.setString(SPEC_JPA.getName());
        conf.nontransactionalWrite.setDefault("true");
        conf.nontransactionalWrite.set(true);
        Specification spec = ((OpenJPAConfiguration) c).getSpecificationInstance();
        int specVersion = spec.getVersion();
        Compatibility compatibility = conf.getCompatibilityInstance();
        spec.setCompatibility(compatibility);
        if (specVersion < 2) {
            compatibility.setFlushBeforeDetach(true);
            compatibility.setCopyOnDetach(true);
            compatibility.setPrivatePersistentProperties(true);
            compatibility.setIgnoreDetachedStateFieldForProxySerialization(true);
            // Disable bean validation for spec level < 2 configurations
            conf.validationMode.set(String.valueOf(ValidationMode.NONE));
        } else {
            compatibility.setAbstractMappingUniDirectional(true);
            compatibility.setNonDefaultMappingAllowed(true);
        }
        return true;
    }

    /**
     * Load configuration from the given persistence unit with the specified
     * user properties.
     */
    public ConfigurationProvider load(PersistenceUnitInfo pinfo, Map m)
        throws IOException {
        if (pinfo == null)
            return null;
        if (!isOpenJPAPersistenceProvider(pinfo, null)) {
            warnUnknownProvider(pinfo);
            return null;
        }

        ConfigurationProviderImpl cp = new ConfigurationProviderImpl();
        cp.addProperties(PersistenceUnitInfoImpl.toOpenJPAProperties(pinfo));
        cp.addProperties(m);
        if (pinfo instanceof PersistenceUnitInfoImpl) {
            PersistenceUnitInfoImpl impl = (PersistenceUnitInfoImpl) pinfo;
            if (impl.getPersistenceXmlFileUrl() != null)
                cp.setSource(impl.getPersistenceXmlFileUrl().toString());
        }
        return cp;
    }

    /**
     * Load configuration from the given resource and unit names, which may
     * be null.
     */
    public ConfigurationProvider load(String rsrc, String name, Map m)
        throws IOException {
        boolean explicit = !StringUtil.isEmpty(rsrc);
        if (!explicit)
            rsrc = RSRC_DEFAULT;

        ConfigurationProviderImpl cp = new ConfigurationProviderImpl();
        Boolean ret = load(cp, rsrc, name, m, null, explicit);
        if (ret != null)
            return (ret.booleanValue()) ? cp : null;
        if (explicit)
            return null;

        // persistence.xml does not exist; just load map
        PersistenceUnitInfoImpl pinfo = new PersistenceUnitInfoImpl();
        pinfo.fromUserProperties(m);
        if (!isOpenJPAPersistenceProvider(pinfo, null)) {
            warnUnknownProvider(pinfo);
            return null;
        }
        cp.addProperties(pinfo.toOpenJPAProperties());
        return cp;
    }

    @Override
    public ConfigurationProvider load(String rsrc, String anchor,
        ClassLoader loader)
        throws IOException {
        if (rsrc != null && !rsrc.endsWith(".xml"))
            return null;
        ConfigurationProviderImpl cp = new ConfigurationProviderImpl();
        if (load(cp, rsrc, anchor, null, loader, true) == Boolean.TRUE)
            return cp;
        return null;
    }

    @Override
    public ConfigurationProvider load(File file, String anchor)
        throws IOException {
        if (!file.getName().endsWith(".xml"))
            return null;

        ConfigurationParser parser = new ConfigurationParser(null);
        parser.parse(file);
        return load(findUnit((List)
            parser.getResults(), anchor, null), null);
    }

    @Override
    public String getDefaultResourceLocation() {
        return RSRC_DEFAULT;
    }

    @Override
    public List getAnchorsInFile(File file) throws IOException {
        ConfigurationParser parser = new ConfigurationParser(null);
        try {
            parser.parse(file);
            return getUnitNames(parser);
        } catch (IOException e) {
            // not all configuration files are XML; return null if unparsable
            return null;
        }
    }

    private List getUnitNames(ConfigurationParser parser) {
        List units = parser.getResults();
        List names = new ArrayList<>();
        for (PersistenceUnitInfoImpl unit : units){
        	String provider = unit.getPersistenceProviderClassName();
			// Only add the PU name if the provider it is ours or not specified.
			if (provider == null || provider.equals(_providerImplName)) {
				names.add(unit.getPersistenceUnitName());
			} else {
				// Should trace something, but logging isn't configured yet.
				// Swallow.
			}
        }
        return names;
    }

    @Override
    public List getAnchorsInResource(String resource) throws Exception {
        ConfigurationParser parser = new ConfigurationParser(null);
        try {
        	List results = new ArrayList();
            ClassLoader loader = AccessController.doPrivileged(
                J2DoPrivHelper.getContextClassLoaderAction());
            List urls = getResourceURLs(resource, loader);
            if (urls != null) {
                for (URL url : urls) {
                    parser.parse(url);
                    results.addAll(getUnitNames(parser));
                }
            }
            return results;
        } catch (IOException e) {
            // not all configuration files are XML; return null if unparsable
            return null;
        }
    }

    @Override
    public ConfigurationProvider loadGlobals(ClassLoader loader)
        throws IOException {
        String[] prefixes = ProductDerivations.getConfigurationPrefixes();
        String rsrc = null;
        for (int i = 0; i < prefixes.length && StringUtil.isEmpty(rsrc); i++)
           rsrc = AccessController.doPrivileged(J2DoPrivHelper
                .getPropertyAction(prefixes[i] + ".properties"));
        boolean explicit = !StringUtil.isEmpty(rsrc);
        String anchor = null;
        int idx = (!explicit) ? -1 : rsrc.lastIndexOf('#');
        if (idx != -1) {
            // separate name from # string
            if (idx < rsrc.length() - 1)
                anchor = rsrc.substring(idx + 1);
            rsrc = rsrc.substring(0, idx);
        }
        if (StringUtil.isEmpty(rsrc))
            rsrc = RSRC_GLOBAL;
        else if (!rsrc.endsWith(".xml"))
            return null;

        ConfigurationProviderImpl cp = new ConfigurationProviderImpl();
        if (load(cp, rsrc, anchor, null, loader, explicit) == Boolean.TRUE)
            return cp;
        return null;
    }

    @Override
    public ConfigurationProvider loadDefaults(ClassLoader loader)
        throws IOException {
        ConfigurationProviderImpl cp = new ConfigurationProviderImpl();
        if (load(cp, RSRC_DEFAULT, null, null, loader, false) == Boolean.TRUE)
            return cp;
        return null;
    }

      /**
      * This method checks to see if the provided puName was
      * detected in multiple resources. If a collision is detected, a warning
      * will be logged and this method will return true.
      * 

*/ public boolean checkPuNameCollisions(Log logger,String puName){ PUNameCollision p = _puNameCollisions.get(puName); if (p != null){ p.logCollision(logger); return true; } return false; } private static List getResourceURLs(String rsrc, ClassLoader loader) throws IOException { Enumeration urls = null; try { urls = AccessController.doPrivileged(J2DoPrivHelper.getResourcesAction(loader, rsrc)); if (!urls.hasMoreElements()) { if (!rsrc.startsWith("META-INF")) urls = AccessController.doPrivileged(J2DoPrivHelper.getResourcesAction(loader, "META-INF/" + rsrc)); if (!urls.hasMoreElements()) return null; } } catch (PrivilegedActionException pae) { throw (IOException) pae.getException(); } return Collections.list(urls); } /** * Looks through the resources at rsrc for a configuration * file that matches name (or an unnamed one if * name is null), and loads the XML in the * resource into a new {@link PersistenceUnitInfo}. Then, applies the * overrides in m. * * @return {@link Boolean#TRUE} if the resource was loaded, null if it * does not exist, or {@link Boolean#FALSE} if it is not for OpenJPA */ private Boolean load(ConfigurationProviderImpl cp, String rsrc, String name, Map m, ClassLoader loader, boolean explicit) throws IOException { ClassLoader contextLoader = null; if (loader == null) { contextLoader = AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction()); loader = contextLoader; } List urls = getResourceURLs(rsrc, loader); if (urls == null || urls.size() == 0) return null; ConfigurationParser parser = new ConfigurationParser(m); PersistenceUnitInfoImpl pinfo = parseResources(parser, urls, name, loader); if (pinfo == null) { if (!explicit) return Boolean.FALSE; throw new MissingResourceException(_loc.get("missing-xml-config", rsrc, String.valueOf(name)).getMessage(), getClass().getName(), rsrc); } else if (!isOpenJPAPersistenceProvider(pinfo, loader)) { if (!explicit) { warnUnknownProvider(pinfo); return Boolean.FALSE; } throw new MissingResourceException(_loc.get("unknown-provider", rsrc, name, pinfo.getPersistenceProviderClassName()). getMessage(), getClass().getName(), rsrc); } // Process jar-file references after confirming OpenJPA is the desired JPA provider. if ( loader != contextLoader && loader instanceof MultiClassLoader) { // combine the MultiClassLoader and set to the context // so that it could be used in the jar validation MultiClassLoader mutliClassLoader = (MultiClassLoader) loader; contextLoader = (contextLoader != null) ? contextLoader : AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction()); mutliClassLoader.addClassLoader(contextLoader); AccessController.doPrivileged(J2DoPrivHelper.setContextClassLoaderAction(mutliClassLoader)); } pinfo.processJarFileNames(); if (contextLoader != null) { //restore the context loader AccessController.doPrivileged(J2DoPrivHelper.setContextClassLoaderAction(contextLoader)); } cp.addProperties(pinfo.toOpenJPAProperties()); cp.setSource(pinfo.getPersistenceXmlFileUrl().toString()); return Boolean.TRUE; } /** * Parse resources at the given location. Searches for a * PersistenceUnitInfo with the requested name, or an OpenJPA unit if * no name given (preferring an unnamed OpenJPA unit to a named one). */ private PersistenceUnitInfoImpl parseResources(ConfigurationParser parser, List urls, String name, ClassLoader loader) throws IOException { List pinfos = new ArrayList<>(); for (URL url : urls) { parser.parse(url); pinfos.addAll((List) parser.getResults()); } return findUnit(pinfos, name, loader); } /** * Find the unit with the given name, or an OpenJPA unit if no name is * given (preferring an unnamed OpenJPA unit to a named one). */ private PersistenceUnitInfoImpl findUnit(List pinfos, String name, ClassLoader loader) { PersistenceUnitInfoImpl ojpa = null; PersistenceUnitInfoImpl result = null; for (PersistenceUnitInfoImpl pinfo : pinfos) { // found named unit? if (name != null) { if (name.equals(pinfo.getPersistenceUnitName())){ if (result != null){ this.addPuNameCollision(name, result.getPersistenceXmlFileUrl().toString(), pinfo.getPersistenceXmlFileUrl().toString()); } else { // Grab a ref to the pinfo that matches the name we're // looking for. Keep going to look for duplicate pu names. result = pinfo; } } continue; } if (isOpenJPAPersistenceProvider(pinfo, loader)) { // if no name given and found unnamed unit, return it. // otherwise record as default unit unless we find a better match later if (StringUtil.isEmpty(pinfo.getPersistenceUnitName())) return pinfo; if (ojpa == null) ojpa = pinfo; } } if(result!=null){ return result; } return ojpa; } /** * Return whether the given persistence unit uses an OpenJPA provider. */ private static boolean isOpenJPAPersistenceProvider(PersistenceUnitInfo pinfo, ClassLoader loader) { String provider = pinfo.getPersistenceProviderClassName(); if (StringUtil.isEmpty(provider) || PersistenceProviderImpl.class.getName().equals(provider)) return true; if (loader == null) loader = AccessController.doPrivileged(J2DoPrivHelper.getContextClassLoaderAction()); try { if (PersistenceProviderImpl.class.isAssignableFrom(Class.forName(provider, false, loader))) return true; } catch (Throwable t) { log(_loc.get("unloadable-provider", provider, t).getMessage()); return false; } return false; } /** * Warn the user that we could only find an unrecognized persistence * provider. */ private static void warnUnknownProvider(PersistenceUnitInfo pinfo) { log(_loc.get("unrecognized-provider", pinfo.getPersistenceProviderClassName()).getMessage()); } /** * Log a message. */ private static void log(String msg) { // at this point logging isn't configured yet // START - ALLOW PRINT STATEMENTS System.err.println(msg); // STOP - ALLOW PRINT STATEMENTS } private void addPuNameCollision(String puName, String file1, String file2){ PUNameCollision pun = _puNameCollisions.get(puName); if (pun != null){ pun.addCollision(file1, file2); } else { _puNameCollisions.put(puName, new PUNameCollision(puName, file1, file2)); } } /** * Custom configuration provider. */ public static class ConfigurationProviderImpl extends MapConfigurationProvider { private String _source; public ConfigurationProviderImpl() { } public ConfigurationProviderImpl(Map props) { super(props); } /** * Set the source of information in this provider. */ public void setSource(String source) { _source = source; } @Override public void setInto(Configuration conf) { if (conf instanceof OpenJPAConfiguration) { OpenJPAConfiguration oconf = (OpenJPAConfiguration) conf; Object persistenceVersion = getProperties().get(PersistenceUnitInfoImpl.PERSISTENCE_VERSION); if (persistenceVersion == null) { oconf.setSpecification(SPEC_JPA); } else { // Set the spec level based on the persistence version oconf.setSpecification("jpa " + persistenceVersion.toString()); } // we merge several persistence.xml elements into the // MetaDataFactory property implicitly. if the user has a // global openjpa.xml with this property set, its value will // get overwritten by our implicit setting. so instead, combine // the global value with our settings String orig = oconf.getMetaDataFactory(); if (!StringUtil.isEmpty(orig)) { String key = ProductDerivations.getConfigurationKey("MetaDataFactory", getProperties()); Object override = getProperties().get(key); if (override instanceof String) addProperty(key, Configurations.combinePlugins(orig, (String) override)); } } super.setInto(conf, null); // At this point user properties have been loaded into the configuration. Apply any modifications based off // those. if (conf instanceof OpenJPAConfiguration) { OpenJPAConfiguration oconf = (OpenJPAConfiguration) conf; String dataCache = oconf.getDataCache(); String sharedDataCacheMode = oconf.getDataCacheMode(); if (DataCacheMode.NONE.toString().equals(sharedDataCacheMode) && dataCache != null && !"false".equals(dataCache)) { Log log = conf.getConfigurationLog(); if (log.isWarnEnabled()) { log.warn(_loc.get("shared-cache-mode-take-precedence", dataCache)); } } if ((dataCache == null || "false".equals(dataCache)) && !DataCacheMode.NONE.toString().equals(sharedDataCacheMode) && !DataCacheMode.UNSPECIFIED.toString().equals(sharedDataCacheMode)){ oconf.setDataCache("true"); } // If the datacache is enabled, make sure we have a RemoteCommitProvider String rcp = oconf.getRemoteCommitProvider(); dataCache = oconf.getDataCache(); // If the datacache is set and is something other than false if (dataCache != null && !"false".equals(dataCache)) { // If RCP is null or empty, set it to sjvm. if (rcp == null || "".equals(rcp)) { oconf.setRemoteCommitProvider("sjvm"); } } } Log log = conf.getConfigurationLog(); if (log.isWarnEnabled()) { Map props = getProperties(); for (String propKey : _invalidPersistenceProperties) { Object propValue = props.get(propKey); if (propValue != null) { log.warn(_loc.get("invalid-persistence-property", new Object[] { propKey, propValue })); } } } if (log.isTraceEnabled()) { String src = (_source == null) ? "?" : _source; log.trace(_loc.get("conf-load", src, getProperties())); } } } /** * SAX handler capable of parsing an JPA persistence.xml file. * Package-protected for testing. */ public static class ConfigurationParser extends XMLMetaDataParser { private static final String PERSISTENCE_XSD_2_0 = "persistence_2_0.xsd"; private static final String PERSISTENCE_XSD_2_1 = "persistence_2_1.xsd"; private static final Localizer _loc = Localizer.forPackage (ConfigurationParser.class); private final Map _map; private PersistenceUnitInfoImpl _info = null; private URL _source = null; private String _persistenceVersion; private String _schemaLocation; private boolean _excludeUnlistedSet = false; public ConfigurationParser(Map map) { _map = map; setCaching(false); setValidating(true); setParseText(true); } @Override public void parse(URL url) throws IOException { _source = url; // peek at the doc to determine the version XMLVersionParser vp = new XMLVersionParser("persistence"); try { vp.parse(url); _persistenceVersion = vp.getVersion(); _schemaLocation = vp.getSchemaLocation(); } catch (Throwable t) { log(_loc.get("version-check-error", _source.toString()).toString()); } super.parse(url); } @Override public void parse(File file) throws IOException { try { _source = AccessController.doPrivileged(J2DoPrivHelper .toURLAction(file)); } catch (PrivilegedActionException pae) { throw (MalformedURLException) pae.getException(); } // peek at the doc to determine the version XMLVersionParser vp = new XMLVersionParser("persistence"); try { vp.parse(file); _persistenceVersion = vp.getVersion(); _schemaLocation = vp.getSchemaLocation(); } catch (Throwable t) { log(_loc.get("version-check-error", _source.toString()).toString()); } super.parse(file); } @Override protected Object getSchemaSource() { // use the version 1 schema by default. non-versioned docs will // continue to parse with the old xml if they do not contain a // persistence-unit. that is currently the only significant change // to the schema. if more significant changes are made in the // future, the 2.0 schema may be preferable. String persistencexsd = "persistence-xsd.rsrc"; // if the version and/or schema location is for 1.0, use the 1.0 // schema if (XMLVersionParser.VERSION_2_0.equals(_persistenceVersion) || (_schemaLocation != null && _schemaLocation.indexOf(PERSISTENCE_XSD_2_0) != -1)) { persistencexsd = "persistence_2_0-xsd.rsrc"; } else if (XMLVersionParser.VERSION_2_1.equals(_persistenceVersion) || (_schemaLocation != null && _schemaLocation.indexOf(PERSISTENCE_XSD_2_1) != -1)) { persistencexsd = "persistence_2_1-xsd.rsrc"; } return getClass().getResourceAsStream(persistencexsd); } @Override protected void reset() { super.reset(); _info = null; _source = null; _excludeUnlistedSet = false; } @Override protected boolean startElement(String name, Attributes attrs) throws SAXException { if (currentDepth() == 1) startPersistenceUnit(attrs); else if (currentDepth() == 3 && "property".equals(name)) _info.setProperty(attrs.getValue("name"), attrs.getValue("value")); return true; } @Override protected void endElement(String name) throws SAXException { if (currentDepth() == 1) { endPersistenceUnit(); _info.fromUserProperties(_map); addResult(_info); } if (currentDepth() != 2) return; switch (name.charAt(0)) { // cases 'name' and 'transaction-type' are handled in // startPersistenceUnit() // case 'property' for 'properties' is handled in startElement() case 'c': // class _info.addManagedClassName(currentText()); break; case 'e': // exclude-unlisted-classes setExcludeUnlistedClasses(currentText()); break; case 'j': if ("jta-data-source".equals(name)) _info.setJtaDataSourceName(currentText()); else { // jar-file try { _info.addJarFileName(currentText()); } catch (IllegalArgumentException iae) { throw getException(iae.getMessage()); } } break; case 'm': // mapping-file _info.addMappingFileName(currentText()); break; case 'n': // non-jta-data-source _info.setNonJtaDataSourceName(currentText()); break; case 'p': if ("provider".equals(name)) _info.setPersistenceProviderClassName(currentText()); break; case 's' : // shared-cache-mode _info.setSharedCacheMode(JPAProperties.getEnumValue(SharedCacheMode.class, currentText())); break; case 'v': // validation-mode _info.setValidationMode(JPAProperties.getEnumValue(ValidationMode.class, currentText())); break; } } // The default value for exclude-unlisted-classes was // modified in JPA 2.0 from false to true. Set the default // based upon the persistence version to preserve behavior // of pre-JPA 2.0 applications. private void setExcludeUnlistedClasses(String value) { if (!_excludeUnlistedSet) { BigDecimal version = getPersistenceVersion(); boolean excludeUnlisted; if (version.compareTo(VERSION_1_0) > 0) { excludeUnlisted = !("false".equalsIgnoreCase(value)); } else { excludeUnlisted = "true".equalsIgnoreCase(value); } _info.setExcludeUnlistedClasses(excludeUnlisted); _excludeUnlistedSet = true; } } /** * Parse persistence-unit element. */ private void startPersistenceUnit(Attributes attrs) throws SAXException { _excludeUnlistedSet = false; _info = new PersistenceUnitInfoImpl(); _info.setPersistenceUnitName(attrs.getValue("name")); _info.setPersistenceXMLSchemaVersion(_persistenceVersion); // we only parse this ourselves outside a container, so default // transaction type to local String val = attrs.getValue("transaction-type"); if (val == null) _info.setTransactionType(PersistenceUnitTransactionType.RESOURCE_LOCAL); else _info.setTransactionType(Enum.valueOf(PersistenceUnitTransactionType.class, val)); if (_source != null) _info.setPersistenceXmlFileUrl(_source); } private void endPersistenceUnit() { if (!_excludeUnlistedSet) { setExcludeUnlistedClasses(null); } } private BigDecimal getPersistenceVersion() { if (_info.getPersistenceXMLSchemaVersion() != null) { try { return new BigDecimal(_info.getPersistenceXMLSchemaVersion()); } catch (Throwable t) { log(_loc.get("invalid-version-attribute", _info.getPersistenceXMLSchemaVersion(), VERSION_1_0.toString()).toString()); } } // OpenJPA supports persistence files without a version attribute. // A persistence file without a version attribute will be considered // a version 1.0 persistence file by default to maintain backward // compatibility. return VERSION_1_0; } } /** * This private class is used to hold onto information regarding * PersistentUnit name collisions. */ private static class PUNameCollision{ private String _puName; private Set _resources; PUNameCollision(String puName, String file1, String file2) { _resources = new LinkedHashSet<>(); _resources.add(file1); _resources.add(file2); _puName=puName; } void logCollision(Log logger){ if(logger.isWarnEnabled()){ logger.warn(_loc.getFatal("dup-pu", new Object[]{_puName,_resources.toString(), _resources.iterator().next()})); } } void addCollision(String file1, String file2){ _resources.add(file1); _resources.add(file2); } } }





© 2015 - 2024 Weber Informatics LLC | Privacy Policy