/*
* 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.felix.scr.integration;
import static org.ops4j.pax.exam.CoreOptions.frameworkProperty;
import static org.ops4j.pax.exam.CoreOptions.junitBundles;
import static org.ops4j.pax.exam.CoreOptions.mavenBundle;
import static org.ops4j.pax.exam.CoreOptions.options;
import static org.ops4j.pax.exam.CoreOptions.provision;
import static org.ops4j.pax.exam.CoreOptions.systemProperty;
import static org.ops4j.pax.tinybundles.core.TinyBundles.bundle;
import static org.ops4j.pax.tinybundles.core.TinyBundles.withBnd;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileDescriptor;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.Dictionary;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeSet;
import java.util.concurrent.LinkedBlockingQueue;
import javax.inject.Inject;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.felix.scr.impl.ScrCommand;
import org.apache.felix.scr.impl.config.ScrConfiguration;
import org.apache.felix.scr.integration.components.SimpleComponent;
import org.junit.After;
import org.junit.Before;
import org.ops4j.pax.exam.CoreOptions;
import org.ops4j.pax.exam.Option;
import org.ops4j.pax.exam.OptionUtils;
import org.ops4j.pax.exam.TestProbeBuilder;
import org.ops4j.pax.exam.junit.Configuration;
import org.ops4j.pax.exam.junit.ProbeBuilder;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleException;
import org.osgi.framework.Constants;
import org.osgi.framework.FrameworkEvent;
import org.osgi.framework.FrameworkListener;
import org.osgi.framework.InvalidSyntaxException;
import org.osgi.framework.ServiceReference;
import org.osgi.service.cm.ConfigurationAdmin;
import org.osgi.service.component.ComponentConstants;
import org.osgi.service.component.ComponentFactory;
import org.osgi.service.component.ComponentInstance;
import org.osgi.service.component.runtime.ServiceComponentRuntime;
import org.osgi.service.component.runtime.dto.ComponentConfigurationDTO;
import org.osgi.service.component.runtime.dto.ComponentDescriptionDTO;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;
public abstract class ComponentTestBase
{
@Inject
protected BundleContext bundleContext;
protected Bundle bundle;
protected ServiceTracker<ServiceComponentRuntime, ServiceComponentRuntime> scrTracker;
protected ServiceTracker<ConfigurationAdmin, ConfigurationAdmin> configAdminTracker;
// the name of the system property providing the bundle file to be installed and tested
protected static final String BUNDLE_JAR_SYS_PROP = "project.bundle.file";
// the default bundle jar file name
protected static final String BUNDLE_JAR_DEFAULT = "target/scr.jar";
protected static final String PROP_NAME = "theValue";
protected static final Dictionary<String, Object> theConfig;
// the JVM option to set to enable remote debugging
protected static final String DEBUG_VM_OPTION = "-Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=30303";
// the actual JVM option set, extensions may implement a static
// initializer overwriting this value to have the configuration()
// method include it when starting the OSGi framework JVM
protected static String paxRunnerVmOption = null;
protected static String DS_LOGLEVEL = "debug";
protected static String bsnVersionUniqueness = "single";
// the descriptor file to use for the installed test bundle
protected static String descriptorFile = "/integration_test_simple_components.xml";
protected static String COMPONENT_PACKAGE = "org.apache.felix.scr.integration.components";
protected static boolean NONSTANDARD_COMPONENT_FACTORY_BEHAVIOR = false;
protected volatile Log log;
protected static String[] ignoredWarnings; //null unless you need it.
//set to true to only get last 1000 lines of log.
protected static boolean restrictedLogging;
protected static String felixCaVersion = System.getProperty( "felix.ca.version" );
protected static final String PROP_NAME_FACTORY = ComponentTestBase.PROP_NAME + ".factory";
static
{
theConfig = new Hashtable<String, Object>();
theConfig.put( PROP_NAME, PROP_NAME );
}
@ProbeBuilder
public TestProbeBuilder extendProbe(TestProbeBuilder builder) {
builder.setHeader("Export-Package", "org.apache.felix.scr.integration.components," +
"org.apache.felix.scr.integration.components.activatesignature," +
"org.apache.felix.scr.integration.components.annoconfig," +
"org.apache.felix.scr.integration.components.circular," +
"org.apache.felix.scr.integration.components.circularFactory," +
"org.apache.felix.scr.integration.components.concurrency," +
"org.apache.felix.scr.integration.components.deadlock," +
"org.apache.felix.scr.integration.components.felix3680," +
"org.apache.felix.scr.integration.components.felix3680_2");
builder.setHeader("Import-Package", "org.apache.felix.scr,org.apache.felix.scr.component;mandatory:=\"status\"; status=\"provisional\"");
builder.setHeader("Bundle-ManifestVersion", "2");
return builder;
}
@Configuration
public static Option[] configuration()
{
final String bundleFileName = System.getProperty( BUNDLE_JAR_SYS_PROP, BUNDLE_JAR_DEFAULT );
final File bundleFile = new File( bundleFileName );
if ( !bundleFile.canRead() )
{
throw new IllegalArgumentException( "Cannot read from bundle file " + bundleFileName + " specified in the "
+ BUNDLE_JAR_SYS_PROP + " system property" );
}
final Option[] base = options(
provision(
CoreOptions.bundle( bundleFile.toURI().toString() ),
mavenBundle( "org.ops4j.pax.tinybundles", "tinybundles", "1.0.0" ),
mavenBundle( "org.apache.felix", "org.apache.felix.configadmin", felixCaVersion )
),
junitBundles(),
frameworkProperty( "org.osgi.framework.bsnversion" ).value( bsnVersionUniqueness ),
systemProperty( "ds.factory.enabled" ).value( Boolean.toString( NONSTANDARD_COMPONENT_FACTORY_BEHAVIOR ) ),
systemProperty( "ds.loglevel" ).value( DS_LOGLEVEL )
);
final Option vmOption = ( paxRunnerVmOption != null ) ? CoreOptions.vmOption( paxRunnerVmOption ) : null;
NONSTANDARD_COMPONENT_FACTORY_BEHAVIOR = false;
return OptionUtils.combine( base, vmOption );
}
@Before
public void setUp() throws BundleException
{
log = new Log(restrictedLogging, ignoredWarnings);
log.start();
bundleContext.addFrameworkListener( log );
bundleContext.registerService( LogService.class.getName(), log, null );
scrTracker = new ServiceTracker<ServiceComponentRuntime, ServiceComponentRuntime>( bundleContext, ServiceComponentRuntime.class, null );
scrTracker.open();
configAdminTracker = new ServiceTracker<ConfigurationAdmin, ConfigurationAdmin>( bundleContext, ConfigurationAdmin.class, null );
configAdminTracker.open();
bundle = installBundle( descriptorFile, COMPONENT_PACKAGE );
bundle.start();
}
@After
public void tearDown() throws BundleException
{
try
{
if ( bundle != null && bundle.getState() != Bundle.UNINSTALLED )
{
bundle.uninstall();
bundle = null;
}
configAdminTracker.close();
configAdminTracker = null;
scrTracker.close();
scrTracker = null;
}
finally
{
log.stop();
}
}
protected Collection<ComponentDescriptionDTO> getComponentDescriptions()
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr == null )
{
TestCase.fail("no ServiceComponentRuntime");
}
return scr.getComponentDescriptionDTOs();
}
protected ComponentDescriptionDTO findComponentDescriptorByName( String name )
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr == null )
{
TestCase.fail("no ServiceComponentRuntime");
}
return scr.getComponentDescriptionDTO(bundle, name);
}
protected Collection<ComponentConfigurationDTO> findComponentConfigurationsByName( Bundle b, String name, int expected )
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr == null )
{
TestCase.fail("no ServiceComponentRuntime");
}
ComponentDescriptionDTO cd = scr.getComponentDescriptionDTO(b, name);
Collection<ComponentConfigurationDTO> ccs = scr.getComponentConfigurationDTOs(cd);
if (expected != -1)
{
for (ComponentConfigurationDTO cc: ccs)
{
Assert.assertEquals( "for ComponentConfiguration name: " + cc.description.name + " properties" + cc.properties + "Expected state " + STATES.get(expected) + " but was " + STATES.get(cc.state), expected, cc.state);
}
}
return ccs;
}
protected Collection<ComponentConfigurationDTO> findComponentConfigurationsByName( String name, int expected )
{
return findComponentConfigurationsByName(bundle, name, expected);
}
protected ComponentConfigurationDTO findComponentConfigurationByName( Bundle b, String name, int expected )
{
Collection<ComponentConfigurationDTO> ccs = findComponentConfigurationsByName( b, name, expected);
Assert.assertEquals(1, ccs.size());
return ccs.iterator().next();
}
protected ComponentConfigurationDTO findComponentConfigurationByName( String name, int expected )
{
return findComponentConfigurationByName( bundle, name, expected );
}
static final Map<Integer, String> STATES = new HashMap<Integer, String>();
static {
STATES.put(ComponentConfigurationDTO.UNSATISFIED_REFERENCE, "Unsatisfied (" + ComponentConfigurationDTO.UNSATISFIED_REFERENCE + ")" );
STATES.put(ComponentConfigurationDTO.SATISFIED, "Satisified (" + ComponentConfigurationDTO.SATISFIED + ")" );
STATES.put(ComponentConfigurationDTO.ACTIVE, "Active (" + ComponentConfigurationDTO.ACTIVE + ")" );
}
protected ComponentConfigurationDTO getDisabledConfigurationAndEnable( Bundle b, String name, int initialState ) throws InvocationTargetException, InterruptedException
{
int count = 1;
Collection<ComponentConfigurationDTO> ccs = getConfigurationsDisabledThenEnable(
b, name, count, initialState);
ComponentConfigurationDTO cc = ccs.iterator().next();
return cc;
}
protected ComponentConfigurationDTO getDisabledConfigurationAndEnable( String name, int initialState ) throws InvocationTargetException, InterruptedException
{
return getDisabledConfigurationAndEnable( bundle, name, initialState );
}
protected Collection<ComponentConfigurationDTO> getConfigurationsDisabledThenEnable( Bundle b, String name, int count, int initialState) throws InvocationTargetException, InterruptedException
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr == null )
{
TestCase.fail("no ServiceComponentRuntime");
}
ComponentDescriptionDTO cd = scr.getComponentDescriptionDTO(b, name);
Assert.assertFalse("Expected component disabled", scr.isComponentEnabled(cd));
scr.enableComponent(cd).getValue();
Assert.assertTrue("Expected component enabled", scr.isComponentEnabled(cd));
Collection<ComponentConfigurationDTO> ccs = scr.getComponentConfigurationDTOs(cd);
Assert.assertEquals(count, ccs.size());
for (ComponentConfigurationDTO cc: ccs) {
Assert.assertEquals("Expected state " + STATES.get(initialState)
+ " but was " + STATES.get(cc.state), initialState,
cc.state);
}
return ccs;
}
protected Collection<ComponentConfigurationDTO> getConfigurationsDisabledThenEnable( String name, int count, int initialState) throws InvocationTargetException, InterruptedException
{
return getConfigurationsDisabledThenEnable(bundle, name, count, initialState);
}
protected ComponentDescriptionDTO checkConfigurationCount( Bundle b, String name, int count, int expectedState )
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr == null )
{
TestCase.fail("no ServiceComponentRuntime");
}
ComponentDescriptionDTO cd = scr.getComponentDescriptionDTO(b, name);
Assert.assertTrue("Expected component enabled", scr.isComponentEnabled(cd));
Collection<ComponentConfigurationDTO> ccs = scr.getComponentConfigurationDTOs(cd);
Assert.assertEquals(count, ccs.size());
if (expectedState != -1)
{
for (ComponentConfigurationDTO cc: ccs)
{
Assert.assertEquals("Expected state " + STATES.get(expectedState)
+ " but was " + STATES.get(cc.state), expectedState,
cc.state);
}
}
return cd;
}
protected ComponentDescriptionDTO checkConfigurationCount( String name, int count, int expectedState )
{
return checkConfigurationCount(bundle, name, count, expectedState);
}
protected <S> S getServiceFromConfiguration( ComponentConfigurationDTO dto, Class<S> clazz )
{
long id = dto.id;
String filter = "(component.id=" + id + ")";
Collection<ServiceReference<S>> srs;
try {
srs = bundleContext.getServiceReferences(clazz, filter);
Assert.assertEquals(1, srs.size());
ServiceReference<S> sr = srs.iterator().next();
S s = bundleContext.getService(sr);
Assert.assertNotNull(s);
return s;
} catch (InvalidSyntaxException e) {
TestCase.fail(e.getMessage());
return null;//unreachable in fact
}
}
protected <S> void ungetServiceFromConfiguration( ComponentConfigurationDTO dto, Class<S> clazz )
{
long id = dto.id;
String filter = "(component.id=" + id + ")";
Collection<ServiceReference<S>> srs;
try {
srs = bundleContext.getServiceReferences(clazz, filter);
Assert.assertEquals(1, srs.size());
ServiceReference<S> sr = srs.iterator().next();
bundleContext.ungetService(sr);
} catch (InvalidSyntaxException e) {
TestCase.fail(e.getMessage());
}
}
protected void enableAndCheck( ComponentDescriptionDTO cd ) throws InvocationTargetException, InterruptedException
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr != null )
{
scr.enableComponent(cd).getValue();
Assert.assertTrue("Expected component enabled", scr.isComponentEnabled(cd));
}
else
{
throw new NullPointerException("no ServiceComponentRuntime");
}
}
protected void disableAndCheck( ComponentConfigurationDTO cc ) throws InvocationTargetException, InterruptedException
{
ComponentDescriptionDTO cd = cc.description;
disableAndCheck(cd);
}
protected void disableAndCheck(ComponentDescriptionDTO cd) throws InvocationTargetException, InterruptedException {
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr != null )
{
scr.disableComponent(cd).getValue();
Assert.assertFalse("Expected component disabled", scr.isComponentEnabled(cd));
}
else
{
throw new NullPointerException("no ServiceComponentRuntime");
}
}
protected void disableAndCheck(String name) throws InvocationTargetException, InterruptedException {
ComponentDescriptionDTO cd = findComponentDescriptorByName(name);
disableAndCheck(cd);
}
protected static void delay()
{
delay(300);
}
protected static void delay(int millis)
{
try
{
Thread.sleep(millis);
}
catch (InterruptedException ie)
{
}
}
protected ConfigurationAdmin getConfigurationAdmin()
{
ConfigurationAdmin ca = ( ConfigurationAdmin ) configAdminTracker.getService();
if ( ca == null )
{
TestCase.fail( "Missing ConfigurationAdmin service" );
}
return ca;
}
protected org.osgi.service.cm.Configuration configure( String pid )
{
return configure( pid, null );
}
protected org.osgi.service.cm.Configuration configure( String pid, String bundleLocation )
{
return configure(pid, bundleLocation, theConfig);
}
protected org.osgi.service.cm.Configuration configure(String pid,
String bundleLocation, Dictionary<String, Object> props)
{
ConfigurationAdmin ca = getConfigurationAdmin();
try
{
org.osgi.service.cm.Configuration config = ca.getConfiguration( pid, null );
if (bundleLocation != null)
{
config.setBundleLocation( bundleLocation );
}
config.update( props );
return config;
}
catch ( IOException ioe )
{
TestCase.fail( "Failed updating configuration " + pid + ": " + ioe.toString() );
}
return null;
}
protected void deleteConfig( String pid )
{
ConfigurationAdmin ca = getConfigurationAdmin();
try
{
org.osgi.service.cm.Configuration config = ca.getConfiguration( pid );
config.delete();
}
catch ( IOException ioe )
{
TestCase.fail( "Failed deleting configuration " + pid + ": " + ioe.toString() );
}
}
protected String createFactoryConfiguration( String factoryPid )
{
ConfigurationAdmin ca = getConfigurationAdmin();
try
{
org.osgi.service.cm.Configuration config = ca.createFactoryConfiguration( factoryPid, null );
config.update( theConfig );
return config.getPid();
}
catch ( IOException ioe )
{
TestCase.fail( "Failed updating factory configuration " + factoryPid + ": " + ioe.toString() );
return null;
}
}
protected void deleteFactoryConfigurations( String factoryPid )
{
ConfigurationAdmin ca = getConfigurationAdmin();
try
{
final String filter = "(service.factoryPid=" + factoryPid + ")";
org.osgi.service.cm.Configuration[] configs = ca.listConfigurations( filter );
if ( configs != null )
{
for ( org.osgi.service.cm.Configuration configuration : configs )
{
configuration.delete();
}
}
}
catch ( InvalidSyntaxException ise )
{
// unexpected
}
catch ( IOException ioe )
{
TestCase.fail( "Failed deleting configurations " + factoryPid + ": " + ioe.toString() );
}
}
//component factory test helper methods
protected ComponentFactory getComponentFactory(final String componentfactory)
throws InvalidSyntaxException
{
final ServiceReference[] refs = bundleContext.getServiceReferences( ComponentFactory.class.getName(), "("
+ ComponentConstants.COMPONENT_FACTORY + "=" + componentfactory + ")" );
TestCase.assertNotNull( refs );
TestCase.assertEquals( 1, refs.length );
final ComponentFactory factory = ( ComponentFactory ) bundleContext.getService( refs[0] );
TestCase.assertNotNull( factory );
return factory;
}
protected void checkFactory(final String componentfactory, boolean expectFactoryPresent)
throws InvalidSyntaxException
{
ServiceReference[] refs = bundleContext.getServiceReferences( ComponentFactory.class.getName(), "("
+ ComponentConstants.COMPONENT_FACTORY + "=" + componentfactory + ")" );
if ( expectFactoryPresent )
{
TestCase.assertNotNull( refs );
TestCase.assertEquals(1, refs.length);
}
else
{
TestCase.assertNull( refs );
}
}
protected ComponentInstance createFactoryComponentInstance(final String componentfactory)
throws InvalidSyntaxException
{
Hashtable<String, String> props = new Hashtable<String, String>();
props.put( PROP_NAME_FACTORY, PROP_NAME_FACTORY );
return createFactoryComponentInstance(componentfactory, props);
}
protected ComponentInstance createFactoryComponentInstance(
final String componentfactory, Hashtable<String, String> props)
throws InvalidSyntaxException
{
final ComponentFactory factory = getComponentFactory(componentfactory);
final ComponentInstance instance = factory.newInstance( props );
TestCase.assertNotNull( instance );
TestCase.assertNotNull( instance.getInstance() );
TestCase.assertEquals( SimpleComponent.INSTANCE, instance.getInstance() );
TestCase.assertEquals( PROP_NAME_FACTORY, SimpleComponent.INSTANCE.getProperty( PROP_NAME_FACTORY ) );
return instance;
}
protected static Class<?> getType( Object object, String desiredName )
{
Class<?> ccImpl = object.getClass();
while ( ccImpl != null && !desiredName.equals( ccImpl.getSimpleName() ) )
{
ccImpl = ccImpl.getSuperclass();
}
if ( ccImpl == null )
{
TestCase.fail( "ComponentContext " + object + " is not a " + desiredName );
}
return ccImpl;
}
protected static Object getFieldValue( Object object, String fieldName )
{
try
{
final Field m_componentsField = getField( object.getClass(), fieldName );
return m_componentsField.get( object );
}
catch ( Throwable t )
{
TestCase.fail( "Cannot get " + fieldName + " from " + object + ": " + t );
return null; // keep the compiler happy
}
}
protected Object getComponentManagerFromComponentInstance( Object instance )
{
Object cc = getFieldValue( instance, "m_componentContext");
return getFieldValue( cc, "m_componentManager" );
}
protected static Field getField( Class<?> type, String fieldName ) throws NoSuchFieldException
{
Class<?> clazz = type;
while (clazz != null)
{
Field[] fields = clazz.getDeclaredFields();
for (int i = 0; i < fields.length; i++)
{
Field field = fields[i];
if (field.getName().equals(fieldName))
{
field.setAccessible( true );
return field;
}
}
clazz = clazz.getSuperclass();
}
throw new NoSuchFieldException(fieldName);
}
protected Bundle installBundle( final String descriptorFile, String componentPackage ) throws BundleException
{
return installBundle(descriptorFile, componentPackage, "simplecomponent", "0.0.11", null);
}
protected Bundle installBundle( final String descriptorFile, String componentPackage, String symbolicName, String version, String location ) throws BundleException
{
final InputStream bundleStream = bundle()
.add("OSGI-INF/components.xml", getClass().getResource(descriptorFile))
.set(Constants.BUNDLE_SYMBOLICNAME, symbolicName)
.set(Constants.BUNDLE_VERSION, version)
.set(Constants.IMPORT_PACKAGE, componentPackage)
.set("Service-Component", "OSGI-INF/components.xml")
.build(withBnd());
try
{
if ( location == null )
{
location = "test:SimpleComponent/" + System.currentTimeMillis();
}
return bundleContext.installBundle( location, bundleStream );
}
finally
{
try
{
bundleStream.close();
}
catch ( IOException ioe )
{
}
}
}
//Code copied from ScrCommand to make it easier to find out what your test components are actually doing.
// @Test
public void testDescription()
{
PrintStream out = System.out;
info( new PrintWriter(out) );
}
private static class InfoWriter extends ScrCommand
{
protected InfoWriter(ServiceComponentRuntime scrService)
{
super(null, scrService, null);
}
}
void info( PrintWriter out )
{
ServiceComponentRuntime scr = scrTracker.getService();
if ( scr == null )
{
TestCase.fail("no ServiceComponentRuntime");
}
new InfoWriter(scr).list(null, out);
}
protected boolean isAtLeastR5()
{
try
{
Method m = org.osgi.service.cm.Configuration.class.getDeclaredMethod( "getChangeCount");
return true;
}
catch ( SecurityException e )
{
throw new RuntimeException(e);
}
catch ( NoSuchMethodException e )
{
return false;
}
}
// Used to ignore logs displayed by the framework from stdout.
// (the log service will log it because it listen to fwk error
// events ...).
static class NullStdout extends PrintStream
{
NullStdout()
{
super(new OutputStream()
{
@Override
public void write(int b) throws IOException
{
}
});
}
}
public static class LogEntry
{
private final String m_msg;
private final int m_level;
private final Throwable m_err;
private final long m_time;
private final Thread m_thread;
LogEntry( int level, String msg, Throwable t )
{
m_level = level;
m_msg = msg;
m_err = t;
m_time = System.currentTimeMillis();
m_thread = Thread.currentThread();
}
public String toString()
{
return m_msg;
}
public int getLevel()
{
return m_level;
}
public String getMessage()
{
return m_msg;
}
public Throwable getError()
{
return m_err;
}
public long getTime()
{
return m_time;
}
public Thread getThread()
{
return m_thread;
}
}
public static class Log implements LogService, FrameworkListener, Runnable
{
private static final int RESTRICTED_LOG_SIZE = 1000;
private final SimpleDateFormat m_sdf = new SimpleDateFormat( "HH:mm:ss,S" );
private final static PrintStream m_out = new PrintStream( new BufferedOutputStream( new FileOutputStream(
FileDescriptor.err ), 128 ) );
private final List<String> m_warnings = Collections.synchronizedList( new ArrayList<String>() );
private LinkedBlockingQueue<LogEntry> m_logQueue = new LinkedBlockingQueue<LogEntry>();
private volatile Thread m_logThread;
private volatile PrintStream m_realOut;
private volatile PrintStream m_realErr;
private String[] ignoredWarnings;
protected Throwable firstFrameworkThrowable;
private final boolean restrictedLogging;
private final String[] log = new String[1000];
private int i = 0;
public Log( boolean restrictedLogging, String[] ignoredWarnings )
{
this.restrictedLogging = restrictedLogging;
this.ignoredWarnings = ignoredWarnings;
}
public void start()
{
m_realOut = System.out;
m_realErr = System.err;
System.setOut( new NullStdout() );
System.setErr( new NullStdout() );
m_logThread = new Thread( this );
m_logThread.start();
}
public void stop()
{
System.setOut(m_realOut);
System.setErr(m_realErr);
if ( restrictedLogging )
{
for (int j = 0; j < RESTRICTED_LOG_SIZE; j++)
{
if ( log[i] != null )
{
m_realErr.println(log[i++]);
}
if (i == RESTRICTED_LOG_SIZE) i = 0;
}
}
else
{
m_out.flush();
}
m_warnings.clear();
m_logThread.interrupt();
try
{
m_logThread.join();
}
catch ( InterruptedException e )
{
}
}
List<String> foundWarnings()
{
return m_warnings;
}
Throwable getFirstFrameworkThrowable()
{
return firstFrameworkThrowable;
}
public void run()
{
try
{
LogEntry entry = null;
while ( true )
{
entry = m_logQueue.take();
if ( entry.getLevel() <= 2 )
{
if ( m_warnings.size() < 1024 && acceptWarning( entry.getMessage() ) )
{
m_warnings.add( entry.getMessage() );
}
else
{
// Avoid out of memory ...
m_warnings.set( 1023, "Unexpected errors logged. Please look at previous logs" );
}
}
StringWriter sw = new StringWriter();
sw.append( "log level: " + entry.getLevel() );
sw.append( " D=" );
sw.append( m_sdf.format( new Date( entry.getTime() ) ) );
sw.append( " T=" + entry.getThread() );
sw.append( ": " );
sw.append( entry.getMessage() );
if ( entry.getError() != null )
{
sw.append( System.getProperty( "line.separator" ) );
PrintWriter pw = new PrintWriter( sw );
entry.getError().printStackTrace( pw );
pw.flush();
}
if ( restrictedLogging )
{
log[i++] = sw.toString();
if ( i == RESTRICTED_LOG_SIZE ) i = 0;
}
else
{
m_out.println( sw.toString() );
m_out.flush();
}
}
}
catch ( InterruptedException e )
{
return;
}
}
// ------------- FrameworkListener -----------------------------------------------------------
private boolean acceptWarning(String message) {
if ( ignoredWarnings != null )
{
for (String ignore : ignoredWarnings) {
if (message.contains(ignore)) {
return false;
}
}
}
return true;
}
public void frameworkEvent( final FrameworkEvent event )
{
int eventType = event.getType();
String msg = getFrameworkEventMessage( eventType );
int level = ( eventType == FrameworkEvent.ERROR ) ? LogService.LOG_ERROR : LogService.LOG_WARNING;
log( level, msg, event.getThrowable() );
if (event.getThrowable() != null && firstFrameworkThrowable == null)
{
firstFrameworkThrowable = event.getThrowable();
}
}
// ------------ LogService ----------------------------------------------------------------
public void log( int level, String message )
{
log( level, message, null );
}
public void log( int level, String message, Throwable exception )
{
if ( level > getEnabledLogLevel() )
{
return;
}
m_logQueue.offer( new LogEntry( level, message, exception ) );
}
public void log( ServiceReference sr, int osgiLevel, String message )
{
log( sr, osgiLevel, message, null );
}
public void log( ServiceReference sr, int level, String msg, Throwable exception )
{
if ( sr != null )
{
StringBuilder sb = new StringBuilder();
Object serviceId = sr.getProperty( Constants.SERVICE_ID );
if ( serviceId != null )
{
sb.append( "[" + serviceId.toString() + "] " );
}
sb.append( msg );
log( level, sb.toString(), exception );
}
else
{
log( level, msg, exception );
}
}
private int getEnabledLogLevel()
{
if ( DS_LOGLEVEL.regionMatches( true, 0, "err", 0, "err".length() ) )
{
return LogService.LOG_ERROR;
}
else if ( DS_LOGLEVEL.regionMatches( true, 0, "warn", 0, "warn".length() ) )
{
return LogService.LOG_WARNING;
}
else if ( DS_LOGLEVEL.regionMatches( true, 0, "info", 0, "info".length() ) )
{
return LogService.LOG_INFO;
}
else
{
return LogService.LOG_DEBUG;
}
}
private String getFrameworkEventMessage( int event )
{
switch ( event )
{
case FrameworkEvent.ERROR:
return "FrameworkEvent: ERROR";
case FrameworkEvent.INFO:
return "FrameworkEvent INFO";
case FrameworkEvent.PACKAGES_REFRESHED:
return "FrameworkEvent: PACKAGE REFRESHED";
case FrameworkEvent.STARTED:
return "FrameworkEvent: STARTED";
case FrameworkEvent.STARTLEVEL_CHANGED:
return "FrameworkEvent: STARTLEVEL CHANGED";
case FrameworkEvent.WARNING:
return "FrameworkEvent: WARNING";
default:
return null;
}
}
}
}