Application.properties location when tomcat deploys - java

I have a war file with application.properties in default resources. I want to, when deploying on Tomcat, put these properties into an external folder like /webapps/example, not /webapps/namewar.
Can I configure my Maven or do something to achieve that?
Thank you so much.

You can use maven-resources-plugin's copy-resources goal to copy a file from your source tree to some directory. You need to add something like the following to your pom.xml:
<project>
...
<build>
<plugins>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<executions>
<execution>
<id>copy-resources</id>
<!-- you may want to choose another phase -->
<!-- see https://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html#Lifecycle_Reference -->
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<!-- outputDirectory can be absolute or relative to ${basedir} -->
<outputDirectory>/webapps/example</outputDirectory>
<resources>
<resource>
<directory>src/main/resources</directory><!-- or whereever your application.properties reside -->
<includes>
<include>application.properties</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
...
</build>
...
</project>

Related

Getting a logback.xml from a dependency jar and filtering it with the maven-war-plugin

We have a common logback.xml file that we would like to use across different web apps. It includes a RollinFileAppender which should see files named as the project artifactId. The logback.xml includes a property like so
<property name="LOG_FILE_NAME" value="$project.artifactId}"/>
Within our web project we would like to include a dependency e.g. logging-setup
<dependency>
<groupId>our.group.id</groupId>
<artifactId>logging-setup</artifactId>
</dependency>
How do we easily allow the maven-war-plugin to filter this file so that the ${project.artifactId} reference is replaced with the actual project.artifactId? I think it can be done using a combination of the maven-dependency-plugin and the maven-war-plugin something like below. However that would need to be included in every project POM. Is there an easier way?
Thanks,
Paul
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin.version}</version>
<executions>
<execution>
<id>unpack</id>
<phase>compile</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>our.group.id</groupId>
<artifactId>logging-setup</artifactId>
<version>${logging-setup.version}</version>
<type>jar</type>
<overWrite>true</overWrite>
<outputDirectory>${basedir}/src/main/resources</outputDirectory>
<includes>**/logback.xml</includes>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
<webResources>
<resource>
<directory>${basedir}/src/main/resources</directory>
<filtering>true</filtering>
<targetPath>WEB-INF/classes</targetPath>
<includes>
<include>logback.xml</include>
</includes>
</resource>
</webResources>
<packagingExcludes>WEB-INF/lib/logging-setup-*.jar</packagingExcludes>
</configuration>
</plugin>
</plugins>
</build>
After this logback.xml file is put inside an artifact jar file, it cannot be changed easily anymore during build time.
I would suggest a slightly different approach:
rename this file to e.g. logback-YOURCOMPANY.xml and change it so it can be included.
create a tiny logback.xml file put in each project as-is which sets the property as you do, and then includes logback-YOURCOMPANY.xml
enable filtering on this tiny logback.xml file so the variable is expanded during Maven build.
See https://logback.qos.ch/manual/configuration.html#fileInclusion for details.

Additional resources directories for images in Maven site

For a Maven site, the standard image directory is src/site/resources/images.
Unfortunately, my asciidoc editor copies images to src/site/asciidoc/images. Can I somehow add this directory to the site resources (as in the Maven resources plugin)?
To copy all resources to an outputDirectory, you can simply specify following in your pom.xml-
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
<executions>
<execution>
<id>copy-resources</id>
<!-- here the phase you need -->
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/src/site/resources/images</outputDirectory>
<resources>
<resource>
<directory>src/non-packaged-resources</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
Sources - Example from the plugin itself.

How to add multiple .properties files as build artifacts with Maven?

I have a Maven project where I want to have two build artifacts:
The jar file containing the compiled Java source.
A folder containing a number of .properties file.
How can I setup my Maven project to do this? And then, once I've done this, how can I consume them up the dependency graph?
Add a copy-resources goal of the Maven Resources Plugin to your POM.
<project>
...
<build>
<plugins>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.7</version>
<executions>
<execution>
<id>copy-property-files</id>
<phase>process-resources</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/property-files</outputDirectory>
<resources>
<resource>
...
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
...
</build>
...
</project>
I can't understand what you mean exactly by "consume them up the dependency graph".

Howto copy README.md into src/main/resources?

I want to show README.md file like help page in my web application. In order not to create duplicate, I need to copy by mvn from project path into resources.
How can I do so?
Any idea?
I have tried:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.3</version>
<configuration>
<!-- this is important -->
<overwrite>true</overwrite>
<!-- target -->
<outputDirectory>${basedir}/target/classes</outputDirectory>
<resources>
<resource>
<!-- source -->
<directory>/</directory>
<include>
<filter>**/README.md</filter>
</include>
</resource>
</resources>
</configuration>
</plugin>
The simplest solution would be to move the appropriate file(s) to src/main/resources folder whereas the second solution could be like this:
<build>
<resources>
<resource>
<directory>${project.basedir}</directory>
<includes>
<include>README.md</include>
</includes>
<filtering>true</filtering>
</resource>
</resources>
</build>
No need for maven-resources-plugin to be configured this can be handled by the usual life cylcle and resource handling. The only thing you might need to adapt is the folder where the README.md is located. If you like having filtering you need to add the <filtering>true</filtering> part as well.
Copying something via Maven during the build into src/** is in general a bad idea, cause those folders are controled by version control systems which will result in uncommitted changes which you don't like to have.
Note: It would be wise to check for up-to-date versions of plugins (cause 2.3 is of 2008!). The list of the current plugin versions can be found here: http://maven.apache.org/plugins/
This works for me in one of my projects:
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>validate</phase>
<!-- when to execute copy operation -->
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>${basedir}/pathTo.MD</directory>
</resource>
</resources>
<overwrite>true</overwrite>
<outputDirectory>${project.build.directory}/${project.build.finalName}/classes</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
I see that i have the phase and the goal extra from your version. I also used variables for the output location.
I would recommend you to be more equal to this example: http://maven.apache.org/plugins/maven-resources-plugin/examples/copy-resources.html
With "more equal" I mean like using <executions> tag.
You can of course leave out things like <id> and filtering.
The following worked fine for me:
<project>
...
<build>
<plugins>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.7</version>
<executions>
<execution>
<id>myID</id>
<!-- here the phase you need -->
<phase>validate</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/extra-resources</outputDirectory>
<overwrite>true</overwrite>
<resources>
<resource>
<directory>src</directory>
<!-- Details about filtering: http://maven.apache.org/plugins/maven-resources-plugin/examples/filter.html -->
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
...
</build>
...
</project>

Specify common resources in a multi-module maven project

Is there any way to share resources between modules of a parent project in Maven? For example, I would like to specify one log4j.properties file for all the modules in a multi-module Maven project.
Generally, I use Eclipse IDE to create the parent project by choosing a general project and then convert it to a Maven project by specifying a packaging of pom. This creates a "clean" project structure without src and etc. folders. I wonder where such a shared resource should be put in this case.
EDIT1: I would like to put the common resources in the parent project.
I'd create one additional "base" module (project), packaging "jar", that contains the common resources in src/main/resources. Then I'd make the other modules depend on that project. Now they see the common resources on their classpaths.
Antoher possibility is to use a remote resource bundle. You would be able to configure it in the parent project. In this example I wanted to copy some files just for tests. If you use this you will need to create the bundle in another project.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-remote-resources-plugin</artifactId>
<version>1.5</version>
<configuration>
<resourceBundles>
<resourceBundle>es.sca:myBundle:1.0.0</resourceBundle>
</resourceBundles>
<attachToMain>false</attachToMain>
<attachToTest>true</attachToTest>
<appendedResourcesDirectory>${basedir}/src/test/resources</appendedResourcesDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>process</goal>
</goals>
</execution>
</executions>
</plugin>
Another way, put in your project root pom:
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<!-- don't propagate to child poms -->
<!-- this will only execute in root pom -->
<inherited>false</inherited>
<configuration>
<descriptors>
<descriptor>assembly.xml</descriptor>
</descriptors>
<!-- don't add classifier -->
<appendAssemblyId>false</appendAssemblyId>
</configuration>
<executions>
<execution>
<phase>initialize</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
<plugins>
And example of assembly.xml
<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<id>resources</id>
<formats>
<format>jar</format>
</formats>
<includeBaseDirectory>false</includeBaseDirectory>
<fileSets>
<fileSet>
<directory>${project.basedir}/resources/</directory>
<outputDirectory/>
<useDefaultExcludes>true</useDefaultExcludes>
<includes>
<include>**</include>
</includes>
</fileSet>
</fileSets>
</assembly>
Assembly plugin will generate artifact and attach it to current reactor, so it will be installed and deployed.
No you can use it as standard dependency event in the same pom.
Important is to trigger assembly (proper phase) before another plugin which will use generated artifact.
Eg. You can have in your root pom, bellow configuration will be propagated to all your module:
<plugin>
<artifactId>some-maven-plugin</artifactId>
<executions>
<execution>
<phase>verify</phase>
<goals>
<goal>goal</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>your.project.groupid</groupId>
<artifactI>your.project.artifactId</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</plugin>
You can see this method in project:
https://github.com/s4u/pgp-keys-map resources directory is shared by all module.
Yes, it seems as a possible solution. But I was interested whether it
is possible to specify these resources in the parent project (without
introducing additional module) since the parent project specifies all
the common dependencies and Maven configurations for the child
modules, I think that the parent project is the most suitable place
also for the common resources.
In case of packaging type pom , when goal package specified to manage your shared resources, just add next (check folders) into build section of pom file :
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>copy-config-files</id>
<phase>package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/logconfig</outputDirectory>
<resources>
<resource>
<filtering>false</filtering>
<directory>${project.basedir}/src/main/resources</directory>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
I think you can just add the resources and/or testResources elements to your pom.
E.g. to access an additional test resource directory add:
<testResources>
<testResource>
<directory>src/test/resources</directory>
</testResource>
<testResource>
<directory>../global/src/test/resources</directory>
</testResource>
</testResources>
see Maven - Override test resource folder
I managed it to work like this:
I create a project/assembly/test/resources/META-INF/persistence.xml file, and add this to my pom.xml:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>copy-test-persistence-xml-resources</id>
<phase>process-test-sources</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>src/</outputDirectory>
<resources>
<resource>
<directory>${project.parent.basedir}/assembly/</directory>
<filtering>true</filtering>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>

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