Package org.glassfish.javaee.full.deployment

Source Code of org.glassfish.javaee.full.deployment.EarHandler$GFApplicationXmlParser

/*
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*
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*
* 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://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/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.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
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package org.glassfish.javaee.full.deployment;

import com.sun.enterprise.deployment.deploy.shared.InputJarArchive;
import java.net.URI;
import java.util.logging.Logger;
import org.glassfish.api.ActionReport;
import org.glassfish.api.deployment.archive.Archive;
import org.glassfish.api.deployment.archive.ArchiveHandler;
import org.glassfish.api.deployment.archive.ReadableArchive;
import org.glassfish.api.deployment.archive.WritableArchive;
import org.glassfish.api.deployment.archive.CompositeHandler;
import org.glassfish.api.deployment.DeploymentContext;
import org.glassfish.api.deployment.DeployCommandParameters;
import org.glassfish.internal.deployment.ExtendedDeploymentContext;
import org.glassfish.internal.api.DelegatingClassLoader;
import org.glassfish.api.admin.ServerEnvironment;
import org.glassfish.deployment.common.DeploymentUtils;
import org.glassfish.deployment.common.DeploymentContextImpl;
import org.glassfish.deployment.common.DeploymentProperties;
import org.glassfish.javaee.core.deployment.ApplicationHolder;
import org.glassfish.loader.util.ASClassLoaderUtil;
import org.glassfish.internal.deployment.Deployment;
import org.jvnet.hk2.annotations.Service;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.component.Habitat;
import org.jvnet.hk2.component.PreDestroy;
import org.xml.sax.SAXParseException;
import com.sun.enterprise.deploy.shared.AbstractArchiveHandler;
import com.sun.enterprise.deploy.shared.ArchiveFactory;
import com.sun.enterprise.deployment.deploy.shared.Util;
import com.sun.enterprise.util.io.FileUtils;
import com.sun.enterprise.deployment.util.XModuleType;
import com.sun.enterprise.deployment.archivist.ApplicationArchivist;
import com.sun.enterprise.deployment.util.ModuleDescriptor;
import com.sun.enterprise.config.serverbeans.DasConfig;
import com.sun.enterprise.deploy.shared.FileArchive;
import com.sun.enterprise.deployment.deploy.shared.JarArchive;

import com.sun.enterprise.universal.i18n.LocalStringsImpl;
import java.io.*;
import java.util.logging.Level;
import java.net.URLClassLoader;
import java.net.URL;
import java.text.MessageFormat;
import java.security.AccessController;
import java.security.PrivilegedAction;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import static javax.xml.stream.XMLStreamConstants.*;

/*;
* Created by IntelliJ IDEA.
* User: dochez
* Date: Jan 16, 2009
* Time: 3:33:40 PM
* To change this template use File | Settings | File Templates.
*/
@Service(name="ear")
public class EarHandler extends AbstractArchiveHandler implements CompositeHandler {

    @Inject
    Deployment deployment;

    @Inject
    ArchiveFactory archiveFactory;

    @Inject
    ServerEnvironment env;

    @Inject
    DasConfig dasConfig;

    private static final String EAR_LIB = "ear_lib";
    private static final String EMBEDDED_RAR = "embedded_rar";

    private static LocalStringsImpl strings = new LocalStringsImpl(EarHandler.class);;


    public String getArchiveType() {
        return "ear";
    }

    public String getVersionIdentifier(ReadableArchive archive) {
        String versionIdentifier = null;
        try {
            GFApplicationXmlParser gfApplicationXMLParser = new GFApplicationXmlParser(null);
            versionIdentifier = gfApplicationXMLParser.extractVersionIdentifierValue(archive);
        } catch (XMLStreamException e) {
            _logger.log(Level.SEVERE, e.getMessage());
        } catch (IOException e) {
            _logger.log(Level.SEVERE, e.getMessage());
        }
        return versionIdentifier;
    }

    public boolean handles(ReadableArchive archive) throws IOException {
        return DeploymentUtils.isEAR(archive);
    }

    @Override
    public void expand(ReadableArchive source, WritableArchive target, DeploymentContext context) throws IOException {
        // expand the top level first so we could read application.xml
        super.expand(source, target, context);

        ReadableArchive source2 = null;
        try {
            /*
             * We know that the expansion is into a directory, so we should know
             * that target is a FileArchive which is also readable as-is.
             */
            source2 = (FileArchive) target;

            ApplicationHolder holder =
                getApplicationHolder(source2, context, false);

            // now start to expand the sub modules
            for (ModuleDescriptor md : holder.app.getModules()) {
                String moduleUri = md.getArchiveUri();
                ReadableArchive subArchive = null;
                WritableArchive subTarget = null;
                ReadableArchive subArchiveToExpand = null;
                try {
                    subArchive = source2.getSubArchive(moduleUri);
                    if (subArchive == null) {
                        _logger.log(Level.WARNING,
                            "Exception while locating sub archive: " +
                            moduleUri);
                        continue;
                    }
                    // optimize performance by retrieving the archive handler
                    // based on module type first
                    ArchiveHandler subHandler = getArchiveHandlerFromModuleType(md.getModuleType());
                    if (subHandler == null) {
                        subHandler = deployment.getArchiveHandler(subArchive);
                    }
                    context.getModuleArchiveHandlers().put(
                        moduleUri, subHandler);
                    if (subHandler!=null) {
                        subTarget = target.createSubArchive(
                            FileUtils.makeFriendlyFilenameExtension(moduleUri));
                        /*
                         * A subarchive might be packaged as a subdirectory
                         * (instead of a nested JAR) in an EAR.  If so and if it
                         * has the same name as the directory into which we'll
                         * expand the submodule, make sure it is also of the
                         * correct archive type (i.e., directory and not JAR)
                         * in which case we don't need to expand it because the developer
                         * already did so before packaging.
                         */
                        subArchiveToExpand = chooseSubArchiveToExpand(moduleUri, subTarget, subArchive, source2);
                        if (subArchiveToExpand != null) {
                            subHandler.expand(subArchiveToExpand, subTarget, context);
                        } else {
                            /*
                             * The target for expansion is the same URI as the
                             * subarchive.  Make sure they are the same type;
                             * if so, we just skip the expansion.  Otherwise,
                             * we would leave a JAR where the rest of
                             * deployment expects a subdirectory so throw an
                             * exception in that case.
                             */
                            if ( ! areSameStorageType(subTarget, subArchive)) {
                                final String msg = MessageFormat.format(
                                        _logger.getResourceBundle().getString("enterprise.deployment.backend.badSubModPackaging"),
                                        subArchive.getURI().toASCIIString(),
                                        subArchive.getClass().getName());
                                throw new RuntimeException(msg);
                            }
                        }
// Keep the original submodule file because the app client deployer needs it.
/*
                        // delete the original module file
                        File origSubArchiveFile = new File(
                            target.getURI().getSchemeSpecificPart(), moduleUri);
                        origSubArchiveFile.delete();
*/
                    }
                } catch(IOException ioe) {
                    _logger.log(Level.FINE, "Exception while processing " +
                        moduleUri, ioe);
                } finally {
                    try {
                        if (subArchive != null) {
                            subArchive.close();
                        }
                        if (subTarget != null) {
                            subTarget.close();
                        }
                        if (subArchiveToExpand != null) {
                            subArchiveToExpand.close();
                        }
                    } catch (IOException ioe) {
                        // ignore
                    }
                }
            }
        } finally {
            if (source2 != null) {
                source2.close();
            }
        }
    }

    private ReadableArchive chooseSubArchiveToExpand(
            final String moduleURI,
            final WritableArchive subTarget,
            final ReadableArchive subArchive,
            final ReadableArchive expandedOriginalArchive) throws IOException {
        /*
         * The subArchive will normally be xxx.jar (or .rar, etc.)
         * In this case, its URI differs from the URI of the target (which
         * will be xxx_jar) and we should expand subArchive into subTarget.
         * But the developer might have pre-expanded the archive in which case
         * subArchive and subTarget will both be xxx_jar.  In such a case
         * we do not want to expand the directory onto itself.
         *
         * Yet, on Windows, it is possible that the xxx_jar directory is left
         * over from a previous expansion from xxx.jar to xxx_jar, in which case
         * we DO want to expand xxx.jar into xxx_jar. 
         */
        if (! subTarget.getURI().equals(subArchive.getURI())) {
            /*
             * The URIs are not the same, so the subArchive is probably xxx.jar
             * and the target is probably xxx_jar.
             */
            return subArchive;
        }

        /*
         * Try to find the xxx.jar entry in the file archive that is the expanded
         * version of the original archive.  If that entry exists, then the
         * xxx_jar entry in the already-expanded directory is probably
         * a left-over from a previous deployment and we should expand the
         * original subarchive into it.  If, on the other hand, the xxx.jar
         * entry does not exist in the expansion, then the developer probably
         * packaged the EAR with a pre-expanded module directory instead of
         * the module JAR; in that case there is no need to expand the
         * pre-expanded directory into itself.
         */
        if (expandedOriginalArchive.exists(moduleURI)) {
            final URI unexpandedSubArchiveURI = expandedOriginalArchive.getURI().resolve(moduleURI);
            return archiveFactory.openArchive(unexpandedSubArchiveURI);
        }
        return null;
    }

    private static boolean areSameStorageType(final Archive arch1, final Archive arch2) {
        return (   (arch1 instanceof FileArchive && arch2 instanceof FileArchive)
                || (arch1 instanceof JarArchive && arch2 instanceof JarArchive));
    }

    public ClassLoader getClassLoader(final ClassLoader parent, DeploymentContext context) {
        final ReadableArchive archive  = context.getSource();

        ApplicationHolder holder =
            getApplicationHolder(archive, context, true);

        // the ear classloader hierachy will be
        // ear lib classloader -> embedded rar classloader ->
        // ear classloader -> various module classloaders
        final DelegatingClassLoader embeddedConnCl;
        final EarClassLoader cl;
        // add the libraries packaged in the application library directory
        try {
            String compatProp = context.getAppProps().getProperty(
                DeploymentProperties.COMPATIBILITY);
            // if user does not specify the compatibility property
            // let's see if it's defined in glassfish-application.xml
            if (compatProp == null) {
                GFApplicationXmlParser gfApplicationXmlParser =
                    new GFApplicationXmlParser(context.getSourceDir());
                compatProp = gfApplicationXmlParser.getCompatibilityValue();
                if (compatProp != null) {
                    context.getAppProps().put(
                        DeploymentProperties.COMPATIBILITY, compatProp);
                }
            }
            // if user does not specify the compatibility property
            // let's see if it's defined in sun-application.xml
            if (compatProp == null) {
                SunApplicationXmlParser sunApplicationXmlParser =
                    new SunApplicationXmlParser(context.getSourceDir());
                compatProp = sunApplicationXmlParser.getCompatibilityValue();
                if (compatProp != null) {
                    context.getAppProps().put(
                        DeploymentProperties.COMPATIBILITY, compatProp);
                }
            }
            final URL[] earLibURLs = ASClassLoaderUtil.getAppLibDirLibraries(context.getSourceDir(), holder.app.getLibraryDirectory(), compatProp);
            final EarLibClassLoader earLibCl = AccessController.doPrivileged(new PrivilegedAction<EarLibClassLoader>() {
                @Override
                public EarLibClassLoader run() {
                    return new EarLibClassLoader(earLibURLs, parent);
                }
            });

            embeddedConnCl =  AccessController.doPrivileged(new PrivilegedAction<DelegatingClassLoader>() {
                @Override
                public DelegatingClassLoader run() {
                    return new DelegatingClassLoader(earLibCl);
                }
            });

            cl =  AccessController.doPrivileged(new PrivilegedAction<EarClassLoader>() {
                @Override
                public EarClassLoader run() {
                    return new EarClassLoader(embeddedConnCl);
                }
            });

            // add ear lib to module classloader list so we can
            // clean it up later
            cl.addModuleClassLoader(EAR_LIB, earLibCl);
        } catch (Exception e) {
            _logger.log(Level.SEVERE, strings.get("errAddLibs") ,e);
            throw new RuntimeException(e);
        }



        for (ModuleDescriptor md : holder.app.getModules()) {
            ReadableArchive sub = null;
            String moduleUri = md.getArchiveUri();
            try {
                sub = archive.getSubArchive(moduleUri);
                if (sub instanceof InputJarArchive) {
                    throw new IllegalArgumentException(strings.get("wrongArchType", moduleUri));
                }
            } catch (IOException e) {
                _logger.log(Level.FINE, "Sub archive " + moduleUri + " seems unreadable" ,e);
            }
            if (sub!=null) {
                try {
                    ArchiveHandler handler =
                        context.getModuleArchiveHandlers().get(moduleUri);
                    if (handler == null) {
                        handler = getArchiveHandlerFromModuleType(md.getModuleType());
                        if (handler == null) {
                            handler = deployment.getArchiveHandler(sub);
                        }
                        context.getModuleArchiveHandlers().put(
                            moduleUri, handler);
                    }

                    if (handler!=null) {
                        ActionReport subReport =
                            context.getActionReport().addSubActionsReport();
                        // todo : this is a hack, once again,
                        // the handler is assuming a file:// url
                        ExtendedDeploymentContext subContext =
                            new DeploymentContextImpl(subReport,
                            context.getLogger(),
                            sub,
                            context.getCommandParameters(
                                DeployCommandParameters.class), env) {

                            @Override
                            public File getScratchDir(String subDirName) {
                                String modulePortion = Util.getURIName(
                                    getSource().getURI());
                                return (new File(super.getScratchDir(
                                    subDirName), modulePortion));
                            }
                        };

                        // sub context will store the root archive handler also
                        // so we can figure out the enclosing archive type
                        subContext.setArchiveHandler
                            (context.getArchiveHandler());

                        sub.setParentArchive(context.getSource());

                        ClassLoader subCl = handler.getClassLoader(cl, subContext);
                        if (md.getModuleType().equals(XModuleType.EJB)) {
                            // for ejb module, we just add the ejb urls
                            // to EarClassLoader and use that to load
                            // ejb module
                            URL[] moduleURLs =
                                ((URLClassLoader)subCl).getURLs();
                            for (URL moduleURL : moduleURLs) {
                                cl.addURL(moduleURL);
                            }
                            cl.addModuleClassLoader(moduleUri, cl);
                            PreDestroy.class.cast(subCl).preDestroy();
                        } else if (md.getModuleType().equals(XModuleType.RAR)) {
                            embeddedConnCl.addDelegate(
                                (DelegatingClassLoader.ClassFinder)subCl);
                            cl.addModuleClassLoader(moduleUri, subCl);
                        } else {
                            Boolean isTempClassLoader = context.getTransientAppMetaData(ExtendedDeploymentContext.IS_TEMP_CLASSLOADER, Boolean.class);
                            if (subCl instanceof URLClassLoader &&
                                (isTempClassLoader != null) &&
                                isTempClassLoader) {
                                // for temp classloader, we add all the module
                                // urls to the top level EarClassLoader
                                URL[] moduleURLs =
                                    ((URLClassLoader)subCl).getURLs();
                                for (URL moduleURL : moduleURLs) {
                                    cl.addURL(moduleURL);
                                }
                            }
                            cl.addModuleClassLoader(moduleUri, subCl);
                        }
                    }
                } catch (IOException e) {
                    _logger.log(Level.SEVERE, strings.get("noClassLoader", moduleUri), e);
                }
            }
        }
        return cl;
    }

    public boolean accept(ReadableArchive source, String entryName) {
        // I am hiding everything but the metadata.
        return entryName.startsWith("META-INF");

    }

    private ApplicationHolder getApplicationHolder(ReadableArchive source,
        DeploymentContext context, boolean isDirectory) {
        ApplicationHolder holder = context.getModuleMetaData(ApplicationHolder.class);
        if (holder==null || holder.app==null) {
            try {
                long start = System.currentTimeMillis();
                ApplicationArchivist archivist = habitat.getComponent(ApplicationArchivist.class);
                archivist.setAnnotationProcessingRequested(true);

                String xmlValidationLevel = dasConfig.getDeployXmlValidation();
                archivist.setXMLValidationLevel(xmlValidationLevel);
                if (xmlValidationLevel.equals("none")) {
                    archivist.setXMLValidation(false);
                }

                holder = new ApplicationHolder(archivist.createApplication(
                    source, isDirectory));
                _logger.fine("time to read application.xml " + (System.currentTimeMillis() - start));
            } catch (IOException e) {
                throw new RuntimeException(e);
            } catch (SAXParseException e) {
                throw new RuntimeException(e);
            }
            context.addModuleMetaData(holder);
        }

        if (holder.app==null) {
            throw new RuntimeException(strings.get("errReadMetadata"));
        }
        return holder;
    }

    // get archive handler from module type
    // performance optimization so we don't need to retrieve archive handler
    // the normal way which might involve annotation scanning
    private ArchiveHandler getArchiveHandlerFromModuleType(XModuleType type) {
        if (type.equals(XModuleType.WAR)) {
            return habitat.getComponent(ArchiveHandler.class, "war");
        } else if (type.equals(XModuleType.RAR)) {
            return habitat.getComponent(ArchiveHandler.class, "connector");
        } else if (type.equals(XModuleType.EJB) ||
            type.equals(XModuleType.CAR)) {
            return habitat.getComponent(ArchiveHandler.class, "DEFAULT");
        } else {
            return null;
        }
    }

    private static class GFApplicationXmlParser {
        private XMLStreamReader parser = null;
        private String compatValue = null;

        GFApplicationXmlParser(File baseDir) throws XMLStreamException, FileNotFoundException {
            InputStream input = null;
            File f = new File(baseDir, "META-INF/glassfish-application.xml");
            if (f.exists()) {
                input = new FileInputStream(f);
                try {
                    read(input);
                } finally {
                    if (parser != null) {
                        try {
                            parser.close();
                        } catch(Exception ex) {
                            // ignore
                        }
                    }
                    if (input != null) {
                        try {
                            input.close();
                        } catch(Exception ex) {
                            // ignore
                        }
                    }
                }
            }
        }

        protected String extractVersionIdentifierValue(ReadableArchive archive) throws XMLStreamException, IOException{

            InputStream input = null;
            String versionIdentifierValue = null;

            try
            {
                input = archive.getEntry("META-INF/glassfish-application.xml");

                if (input != null) {

                    // parse elements only from glassfish-web
                    parser = getXMLInputFactory().createXMLStreamReader(input);

                    int event = 0;
                    skipRoot("glassfish-application");

                    while (parser.hasNext() && (event = parser.next()) != END_DOCUMENT) {
                         if (event == START_ELEMENT) {
                             String name = parser.getLocalName();
                            if ("version-identifier".equals(name)) {
                                versionIdentifierValue = parser.getElementText();
                            } else {
                                 skipSubTree(name);
                            }
                         }
                    }
                }
            }
            finally {
                if (input != null) {
                    try {
                        input.close();
                    } catch(Exception e) {
                        // ignore
                    }
                }
            }

            return  versionIdentifierValue;
        }

        private void read(InputStream input) throws XMLStreamException {
            parser = getXMLInputFactory().createXMLStreamReader(input);

            int event = 0;
            boolean done = false;
            skipRoot("glassfish-application");

            while (!done && (event = parser.next()) != END_DOCUMENT) {

                if (event == START_ELEMENT) {
                    String name = parser.getLocalName();
                    if (DeploymentProperties.COMPATIBILITY.equals(name)) {
                        compatValue = parser.getElementText();
                        done = true;
                    } else {
                        skipSubTree(name);
                    }
                }
            }
        }

        private void skipRoot(String name) throws XMLStreamException {
            while (true) {
                int event = parser.next();
                if (event == START_ELEMENT) {
                    if (!name.equals(parser.getLocalName())) {
                       throw new XMLStreamException();
                    }
                    return;
                }
            }
        }

        private void skipSubTree(String name) throws XMLStreamException {
            while (true) {
                int event = parser.next();
                if (event == END_DOCUMENT) {
                    throw new XMLStreamException();
                } else if (event == END_ELEMENT && name.equals(parser.getLocalName())) {
                    return;
                }
            }
        }

        String getCompatibilityValue() {
            return compatValue;
        }
    }

    private static class SunApplicationXmlParser {
        private XMLStreamReader parser = null;
        private String compatValue = null;

        SunApplicationXmlParser(File baseDir) throws XMLStreamException, FileNotFoundException {
            InputStream input = null;
            File f = new File(baseDir, "META-INF/sun-application.xml");
            if (f.exists()) {
                input = new FileInputStream(f);
                try {
                    read(input);
                } finally {
                    if (parser != null) {
                        try {
                            parser.close();
                        } catch(Exception ex) {
                            // ignore
                        }
                    }
                    if (input != null) {
                        try {
                            input.close();
                        } catch(Exception ex) {
                            // ignore
                        }
                    }
                }
            }
        }

        private void read(InputStream input) throws XMLStreamException {
            parser = getXMLInputFactory().createXMLStreamReader(input);

            int event = 0;
            boolean done = false;
            skipRoot("sun-application");

            while (!done && (event = parser.next()) != END_DOCUMENT) {

                if (event == START_ELEMENT) {
                    String name = parser.getLocalName();
                    if (DeploymentProperties.COMPATIBILITY.equals(name)) {
                        compatValue = parser.getElementText();
                        done = true;
                    } else {
                        skipSubTree(name);
                    }
                }
            }
        }

        private void skipRoot(String name) throws XMLStreamException {
            while (true) {
                int event = parser.next();
                if (event == START_ELEMENT) {
                    if (!name.equals(parser.getLocalName())) {
                       throw new XMLStreamException();
                    }
                    return;
                }
            }
        }

        private void skipSubTree(String name) throws XMLStreamException {
            while (true) {
                int event = parser.next();
                if (event == END_DOCUMENT) {
                    throw new XMLStreamException();
                } else if (event == END_ELEMENT && name.equals(parser.getLocalName())) {
                    return;
                }
            }
        }

        String getCompatibilityValue() {
            return compatValue;
        }
    }
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