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isis-wicket-wickedcharts

Build Status

This component, intended for use with Apache Isis's Wicket viewer, integrates Wicked Charts.
Wicked Charts is in turn an integration between Apache Wicket and the Highcharts JS charting library).

Please note that while this project and Wicked Charts are licensed under Apache 2.0 License, Highcharts itself is only free for non-commercial use. See here for further details.

There are in fact two separate components:

  • summarycharts: render a standalone collection with BigDecimal properties as a chart. (This component can be thought of as an enhancement of the base summary view provided by Isis Wicket viewer).

  • scalarchart: renders a standalone scalar value (from an action invocation) as a chart

Screenshots

The following screenshots show the example app's usage of the component with some sample fixture data:

Note that the example entity (todo item) has two numeric (BigDecimal) properties:

Summary Charts

Invoking an action that returns a collection of entities:

... shows an additional button to view those entities in a summary chart:

Clicking on the button renders a chart where the values of all numeric (BigDecimal) properties are plotted:

Scalar Charts

Arbitrary charts can be returned from any action. For example this action:

... renders a pie chart splitting out the example Todo entities by their category:

How to run the Demo App

The prerequisite software is:

  • Java JDK 8 (>= 1.9.0) or Java JDK 7 (<= 1.8.0) ** note that the compile source and target remains at JDK 7
  • maven 3 (3.2.x is recommended).

To build the demo app:

git clone https://github.com/isisaddons/isis-wicket-wickedcharts.git
mvn clean install

To run the demo app:

mvn antrun:run -P self-host

Then log on using user: sven, password: pass

API & Usage

Summary Charts

There is no special usage; a standalone collection of any entity with one or more properties of type BigDecimal will be rendered using the summarycharts extension.

Scalar Chart

Any action returning the WickedChart value type should be rendered as a chart. The WickedChart value type is simply a wrapper around the wicked chart's Options class:

import com.googlecode.wickedcharts.highcharts.options.Options;

public class WickedChart implements Serializable {

    private Options options;
    
    public WickedChart(Options options) { ... }
    ...
}

Any chart supported by Wicked Charts (see their showcase app) should work.

How to configure/use

You can either use this component "out-of-the-box", or you can fork this repo and extend to your own requirements.

"Out-of-the-box"

To use "out-of-the-box", add the component to your project's dom module's pom.xml:

<dependency>
    <groupId>org.isisaddons.wicket.wickedcharts</groupId>
    <artifactId>isis-wicket-wickedcharts-cpt</artifactId>
    <version>1.13.0</version>
</dependency>

Check for later releases by searching Maven Central Repo.

"Out-of-the-box" (-SNAPSHOT)

If you want to use the current -SNAPSHOT, then the steps are the same as above, except:

  • when updating the classpath, specify the appropriate -SNAPSHOT version:
    <version>1.14.0-SNAPSHOT</version>
  • add the repository definition to pick up the most recent snapshot (we use the Cloudbees continuous integration service). We suggest defining the repository in a <profile>:
    <profile>
        <id>cloudbees-snapshots</id>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <repositories>
            <repository>
                <id>snapshots-repo</id>
                <url>http://repository-estatio.forge.cloudbees.com/snapshot/</url>
                <releases>
                    <enabled>false</enabled>
                </releases>
                <snapshots>
                    <enabled>true</enabled>
                </snapshots>
            </repository>
        </repositories>
    </profile>

Forking the repo

If instead you want to extend these components' functionality, then we recommend that you fork this repo. The repo is structured as follows:

  • pom.xml - parent pom
  • cpt - the component implementation
  • fixture - fixtures, holding a sample domain objects and fixture scripts
  • webapp - demo webapp (see above screenshots)

Only the cpt project (and its submodules) is released to Maven central. The versions of the other modules are purposely left at 0.0.1-SNAPSHOT because they are not intended to be released.

Limitations

Although the WickedChart class (in the scalarchart's API) has value semantics, it will (currently) not render as a chart if used as an entity property.

Such a property should be persistable, however.

Therefore a workaround is to hide the property and instead provide an action to show the chart.

For example:

public class MyEntity {

    private WickedChart chart;
    @Hidden
    public WickedChart getChart() { ... }
    public void setChart(WickedChart chart) { ... }

    public WickedChart showChart() {
        return getChart();
    }
}

Change Log

  • 1.13.0 - released against Isis 1.13.0
  • 1.12.0 - released against Isis 1.12.0
  • 1.11.0 - released against Isis 1.11.0
  • 1.10.0 - released against Isis 1.10.0
  • 1.9.0 - released against Isis 1.9.0
  • 1.8.0 - released against Isis 1.8.0
  • 1.7.0 - released against Isis 1.7.0
  • 1.6.0 - re-released as part of isisaddons, changed package names for API to org.isisaddons.wicket.wickedcharts

Legal Stuff

Please note that while this project and Wicked Charts are licensed under Apache 2.0 License, Highcharts itself is only free for non-commercial use. See here for further details.

License

Copyright 2013~2016 Dan Haywood

Licensed 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.

Dependencies

In addition to Apache Isis, this component depends on:

  • commons-codec:commons-codec (ASL v2.0 License)
  • com.googlecode.wicked-charts:wicked-charts-wicket6 (ASL v2.0 License)
  • http://highcharts.com/license (commercial license required unless personal/open source project)

Maven deploy notes

Only the cpt module is deployed, and is done so using Sonatype's OSS support (see user guide).

Release to Sonatype's Snapshot Repo

To deploy a snapshot, use:

pushd cpt
mvn clean deploy
popd

The artifacts should be available in Sonatype's Snapshot Repo.

Release an Interim Build

If you have commit access to this project (or a fork of your own) then you can create interim releases using the interim-release.sh script.

The idea is that this will - in a new branch - update the dom/pom.xml with a timestamped version (eg 1.13.0.20161017-0738). It then pushes the branch (and a tag) to the specified remote.

A CI server such as Jenkins can monitor the branches matching the wildcard origin/interim/* and create a build. These artifacts can then be published to a snapshot repository.

For example:

sh interim-release.sh 1.14.0 origin

where

  • 1.14.0 is the base release
  • origin is the name of the remote to which you have permissions to write to.

Release to Maven Central

The release.sh script automates the release process. It performs the following:

  • performs a sanity check (mvn clean install -o) that everything builds ok
  • bumps the pom.xml to a specified release version, and tag
  • performs a double check (mvn clean install -o) that everything still builds ok
  • releases the code using mvn clean deploy
  • bumps the pom.xml to a specified release version

For example:

sh release.sh 1.13.0 \
              1.14.0-SNAPSHOT \
              dan@haywood-associates.co.uk \
              "this is not really my passphrase"

where

  • $1 is the release version
  • $2 is the snapshot version
  • $3 is the email of the secret key (~/.gnupg/secring.gpg) to use for signing
  • $4 is the corresponding passphrase for that secret key.

Other ways of specifying the key and passphrase are available, see the pgp-maven-plugin's documentation).

If the script completes successfully, then push changes:

git push origin master
git push origin 1.13.0

If the script fails to complete, then identify the cause, perform a git reset --hard to start over and fix the issue before trying again. Note that in the dom's pom.xml the nexus-staging-maven-plugin has the autoReleaseAfterClose setting set to true (to automatically stage, close and the release the repo). You may want to set this to false if debugging an issue.

According to Sonatype's guide, it takes about 10 minutes to sync, but up to 2 hours to update search.