On 2012/07/06 17:43, Jukka Zitting wrote:
You'll want to make sure that both the tika-bundle and tika-core
bundles are actually started/activated by the OSGi environment, as
otherwise the relevant Activators that Tika uses to hook up with the
available services won't get started.
Bingo, having spent much time on why the Parsers were not behaving,
it's actually the tika-core bunde that is not activating.
Eclipse is a finicky beast, even if a bundle has an Activator it won't
be activated if the Bundle-ActivationPolicy is not set, unless the
product is modified to explicitly auto start the bundle.
Ideally, it would be preferable to set the Bundle-ActivationPolicy to
lazy to allow Eclipse (and others?) to do the right thing without
needless complication.
I've tested this by modifying the tika-core/pom.xml (see attached), and
adding the following line:
<Bundle-Activator>
org.apache.tika.config.TikaActivator
</Bundle-Activator>
+ <Bundle-ActivationPolicy>lazy</Bundle-ActivationPolicy>
Any chance of this for the 1.2 release?
Thanks for the help.
Kevin.
p.s. an alternative method of obtaining access to the Detector and
Parser involves something like this in your own bundles activator:
import org.apache.tika.detect.Detector;
import org.apache.tika.parser.Parser;
...
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
detector = (Detector)
context.getService(context.getServiceReference(Detector.class.getName()));
parser = (Parser)
context.getService(context.getServiceReference(Parser.class.getName()));
}
<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<project xmlns="http://maven.apache.org/POM/4.0.0"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd";>
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.apache.tika</groupId>
<artifactId>tika-parent</artifactId>
<version>1.2-SNAPSHOT</version>
<relativePath>../tika-parent/pom.xml</relativePath>
</parent>
<artifactId>tika-core</artifactId>
<packaging>bundle</packaging>
<name>Apache Tika core</name>
<url>http://tika.apache.org/</url>
<dependencies>
<!-- Optional OSGi dependencies, used only when running within OSGi -->
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>4.0.0</version>
<scope>provided</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.compendium</artifactId>
<version>4.0.0</version>
<scope>provided</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>biz.aQute</groupId>
<artifactId>bndlib</artifactId>
<scope>provided</scope>
</dependency>
<!-- Test dependencies -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<extensions>true</extensions>
<configuration>
<instructions>
<Bundle-DocURL>${project.url}</Bundle-DocURL>
<Bundle-Activator>
org.apache.tika.config.TikaActivator
</Bundle-Activator>
<Bundle-ActivationPolicy>lazy</Bundle-ActivationPolicy>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.rat</groupId>
<artifactId>apache-rat-plugin</artifactId>
<configuration>
<excludes>
<exclude>src/test/resources/org/apache/tika/**</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>clirr-maven-plugin</artifactId>
<executions>
<execution>
<phase>verify</phase>
<goals>
<goal>check</goal>
</goals>
<configuration>
<excludes>
<exlude>org/apache/tika/config/TikaActivator</exlude>
<exlude>org/apache/tika/metadata/Property$PropertyType</exlude>
<exlude>org/apache/tika/metadata/Property$ValueType</exlude>
<exlude>org/apache/tika/metadata/DublinCore</exlude>
<exlude>org/apache/tika/metadata/Metadata</exlude>
<exlude>org/apache/tika/metadata/MSOffice</exlude>
<exlude>org/apache/tika/parser/EmptyParser</exlude>
</excludes>
<comparisonArtifacts>
<comparisonArtifact>
<groupId>org.apache.tika</groupId>
<artifactId>tika-core</artifactId>
<version>1.0</version>
<type>jar</type>
</comparisonArtifact>
</comparisonArtifacts>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.10</version>
<configuration>
<additionalClasspathElements>
<additionalClasspathElement>
${project.build.directory}/${project.build.finalName}.jar
</additionalClasspathElement>
</additionalClasspathElements>
</configuration>
<executions>
<execution>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
