Photon Core

On-the-fly photo processing

License	Apache License 2.0
GroupId	com.thousandmemories.photon
ArtifactId	photon-core
Last Version	0.1.0
Release Date	Aug 3, 2012
Type	jar
Description	Photon Core On-the-fly photo processing
Project URL	http://github.com/1000Memories/photon-core
Source Code Management	http://github.com/1000Memories/photon-core

Download photon-core

Filename	Size
photon-core-0.1.0.pom
photon-core-0.1.0.jar	9 KB
photon-core-0.1.0-sources.jar	4 KB
photon-core-0.1.0-javadoc.jar	38 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.thousandmemories.photon/photon-core/ -->
<dependency>
    <groupId>com.thousandmemories.photon</groupId>
    <artifactId>photon-core</artifactId>
    <version>0.1.0</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.thousandmemories.photon/photon-core/
implementation 'com.thousandmemories.photon:photon-core:0.1.0'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.thousandmemories.photon/photon-core/
implementation ("com.thousandmemories.photon:photon-core:0.1.0")

Apache Buildr

'com.thousandmemories.photon:photon-core:jar:0.1.0'

Apache Ivy

<dependency org="com.thousandmemories.photon" name="photon-core" rev="0.1.0">
  <artifact name="photon-core" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.thousandmemories.photon', module='photon-core', version='0.1.0')
)

Scala SBT

libraryDependencies += "com.thousandmemories.photon" % "photon-core" % "0.1.0"

Leiningen

[com.thousandmemories.photon/photon-core "0.1.0"]

Dependencies

compile (2)

Group / Artifact	Type	Version
org.imgscalr : imgscalr-lib	jar	4.2
com.yammer.dropwizard : dropwizard-core	jar	0.5.0

test (4)

Group / Artifact	Type	Version
junit : junit	jar	4.8.1
org.hamcrest : hamcrest-integration	jar	1.2.1
com.yammer.dropwizard : dropwizard-testing	jar	0.5.0
org.mockito : mockito-core	jar	1.9.0

Project Modules

There are no modules declared in this project.

photon-core

On the fly photo processing

Photon-core provides a JAX-RS resource (com.thousandmemories.photon.core.PhotoResource) that processes (resizes, rotates, and crops) image files on the fly.

Read more about why we built it on our blog post (TODO: link blog post after it's live) or see it in use in an example at https://github.com/1000Memories/photon-example

PhotoResource

PhotoResource takes a path like /1234.jpg;w=200;r=180;c=130,60,200,300, fetches the image named 1234.jpg using a PhotoProvider, processes the image according the matrix parameters, and spits out the resulting image.

Matrix parameters

• w=200: Resizes the image to be 200px wide
• r=180: Rotates the image 90 degrees clockwise (90, 180, and 270 are the available rotation angles)
• c=130,60,200,300: Crops the image 130px from the left, 60px from the top, with a width of 200px and a height of 300px.

PhotoProvider

PhotoResource's contructor takes an instance of PhotoProvider, which is responsible for finding the image based on the name it's given and returning an InputStream that will yield its contents. This will most often mean looking up a file in a blob store (e.g. S3 or a file system).

An example that fetches the the avatar for the named Twitter user:

public class TwitterPhotoProvider implements PhotoProvider {
    @Override
    public InputStream getPhotoInputStream(String path) throws IOException {
        return new URL("https://api.twitter.com/1/users/profile_image?size=original&screen_name=" + path).openStream();
    }
}

1000Memories

Versions

Version
0.1.0 Aug 3, 2012