Return-Path: X-Original-To: apmail-jackrabbit-commits-archive@www.apache.org Delivered-To: apmail-jackrabbit-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 91D4A1058A for ; Tue, 15 Oct 2013 16:25:13 +0000 (UTC) Received: (qmail 82455 invoked by uid 500); 15 Oct 2013 16:22:49 -0000 Delivered-To: apmail-jackrabbit-commits-archive@jackrabbit.apache.org Received: (qmail 82121 invoked by uid 500); 15 Oct 2013 16:22:38 -0000 Mailing-List: contact commits-help@jackrabbit.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@jackrabbit.apache.org Delivered-To: mailing list commits@jackrabbit.apache.org Received: (qmail 81654 invoked by uid 99); 15 Oct 2013 16:22:20 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 15 Oct 2013 16:22:20 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.4] (HELO eris.apache.org) (140.211.11.4) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 15 Oct 2013 16:22:15 +0000 Received: from eris.apache.org (localhost [127.0.0.1]) by eris.apache.org (Postfix) with ESMTP id 6F85D2388BEF; Tue, 15 Oct 2013 16:21:55 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: svn commit: r1532415 [1/11] - in /jackrabbit/site/live/oak/docs: ./ META-INF/ css/ js/ Date: Tue, 15 Oct 2013 16:21:54 -0000 To: commits@jackrabbit.apache.org From: jukka@apache.org X-Mailer: svnmailer-1.0.9 Message-Id: <20131015162155.6F85D2388BEF@eris.apache.org> X-Virus-Checked: Checked by ClamAV on apache.org Author: jukka Date: Tue Oct 15 16:21:53 2013 New Revision: 1532415 URL: http://svn.apache.org/r1532415 Log: OAK-936: Site checkin for project Oak Documentation-0.11-SNAPSHOT Added: jackrabbit/site/live/oak/docs/META-INF/ jackrabbit/site/live/oak/docs/META-INF/DEPENDENCIES jackrabbit/site/live/oak/docs/META-INF/LICENSE jackrabbit/site/live/oak/docs/META-INF/NOTICE Modified: jackrabbit/site/live/oak/docs/blobstore.html jackrabbit/site/live/oak/docs/construct.html jackrabbit/site/live/oak/docs/css/apache-maven-fluido-1.3.0.min.css jackrabbit/site/live/oak/docs/css/print.css jackrabbit/site/live/oak/docs/dev_getting_started.html jackrabbit/site/live/oak/docs/differences.html jackrabbit/site/live/oak/docs/dos_and_donts.html jackrabbit/site/live/oak/docs/downloads.html jackrabbit/site/live/oak/docs/from_here.html jackrabbit/site/live/oak/docs/index.html jackrabbit/site/live/oak/docs/js/apache-maven-fluido-1.3.0.min.js jackrabbit/site/live/oak/docs/jsop-diff.html jackrabbit/site/live/oak/docs/license.html jackrabbit/site/live/oak/docs/microkernel.html jackrabbit/site/live/oak/docs/mongomk.html jackrabbit/site/live/oak/docs/nodestate.html jackrabbit/site/live/oak/docs/overview.html jackrabbit/site/live/oak/docs/participating.html jackrabbit/site/live/oak/docs/query.html jackrabbit/site/live/oak/docs/segmentmk.html jackrabbit/site/live/oak/docs/use_getting_started.html jackrabbit/site/live/oak/docs/when_things_go_wrong.html Added: jackrabbit/site/live/oak/docs/META-INF/DEPENDENCIES URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/META-INF/DEPENDENCIES?rev=1532415&view=auto ============================================================================== --- jackrabbit/site/live/oak/docs/META-INF/DEPENDENCIES (added) +++ jackrabbit/site/live/oak/docs/META-INF/DEPENDENCIES Tue Oct 15 16:21:53 2013 @@ -0,0 +1,11 @@ +// ------------------------------------------------------------------ +// Transitive dependencies of this project determined from the +// maven pom organized by organization. +// ------------------------------------------------------------------ + +Oak Documentation + + + + + Added: jackrabbit/site/live/oak/docs/META-INF/LICENSE URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/META-INF/LICENSE?rev=1532415&view=auto ============================================================================== --- jackrabbit/site/live/oak/docs/META-INF/LICENSE (added) +++ jackrabbit/site/live/oak/docs/META-INF/LICENSE Tue Oct 15 16:21:53 2013 @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + 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. Added: jackrabbit/site/live/oak/docs/META-INF/NOTICE URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/META-INF/NOTICE?rev=1532415&view=auto ============================================================================== --- jackrabbit/site/live/oak/docs/META-INF/NOTICE (added) +++ jackrabbit/site/live/oak/docs/META-INF/NOTICE Tue Oct 15 16:21:53 2013 @@ -0,0 +1,8 @@ + +Oak Documentation +Copyright 2012-2013 The Apache Software Foundation + +This product includes software developed at +The Apache Software Foundation (http://www.apache.org/). + + Modified: jackrabbit/site/live/oak/docs/blobstore.html URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/blobstore.html?rev=1532415&r1=1532414&r2=1532415&view=diff ============================================================================== --- jackrabbit/site/live/oak/docs/blobstore.html (original) +++ jackrabbit/site/live/oak/docs/blobstore.html Tue Oct 15 16:21:53 2013 @@ -1,390 +1,390 @@ - - - - - - - - - Jackrabbit Oak - - - - - - - - - - - - - - - - - - - Fork me on GitHub - - - - - - -
-
-
- - - - - - - - - - - -
- -
-
- - -
- - - - - -
-
-
- - - - - - -
- -
- - - - -
- -
-
-
- - Built by Maven - -
-
-
- - -
- -
-

The Blob Store

-

The Oak BlobStore is similar to the Jackrabbit 2.x DataStore. However, there are a few minor problems the BlobStore tries to address. Because, for the Jackrabbit DataStore:

- -
    - -
  • -

    a temporary file is created when adding a large binary, even if the binary already exists

    • - -
  • -

    sharding is slow and complicated because the hash needs to be calculated first, before the binary is stored in the target shard (the FileDataStore still doesn’t support sharding the directory currently)

    • - -
  • -

    file handles are kept open until the consumer is done reading, which complicates the code, and we could potentially get “too many open files” when the consumer doesn’t close the stream

    • - -
  • -

    for database based data stores, there is a similar (even worse) problem that streams are kept open, which means we need to use connection pooling, and if the user doesn’t close the stream we could run out of connections

    • - -
  • -

    for database based data stores, for some databases (MySQL), binaries are fully read in memory, which results in out-of-memory

    • - -
  • -

    binaries that are similar are always stored separately no matter what

    • -
-

Those problems are solved in Oak BlobStores, because binaries are split into blocks of 2 MB. This is similar to how DropBox works internally: http://serverfault.com/questions/52861/how-does-dropbox-version-upload-large-files - blocks are processed in memory so that temp files are never needed, and blocks are cached. File handles don’t need to be kept open. Sharding is trivial because each block is processed separately.

-

Binaries that are similar: in the BlobStore, currently, they are stored separately except if some of the 2 MB blocks match. However, the algorithm in the BlobStore would allow to re-use all matching parts, because in the BlobStore, concatenating blob ids means concatenating the data.

-

Another change was that most DataStore implementations use SHA-1, while the BlobStore uses SHA-256. Using SHA-256 will be a requirement at some point, see also http://en.wikipedia.org/wiki/SHA-2 “Federal agencies … must use the SHA-2 family of hash functions for these applications after 2010”. This might affect some potential users.

-
-
-
- -
- - - + + + + + + + + + Jackrabbit Oak - + + + + + + + + + + + + + + + + + + Fork me on GitHub + + + + + + +
+
+
+ + + + + + + + + + + +
+ +
+
+ + +
+ + + + + +
+
+
+ + + + + + +
+ +
+ + + + +
+ +
+
+
+ + Built by Maven + +
+
+
+ + +
+ +
+

The Blob Store

+

The Oak BlobStore is similar to the Jackrabbit 2.x DataStore. However, there are a few minor problems the BlobStore tries to address. Because, for the Jackrabbit DataStore:

+ +
    + +
  • +

    a temporary file is created when adding a large binary, even if the binary already exists

    • + +
  • +

    sharding is slow and complicated because the hash needs to be calculated first, before the binary is stored in the target shard (the FileDataStore still doesn’t support sharding the directory currently)

    • + +
  • +

    file handles are kept open until the consumer is done reading, which complicates the code, and we could potentially get “too many open files” when the consumer doesn’t close the stream

    • + +
  • +

    for database based data stores, there is a similar (even worse) problem that streams are kept open, which means we need to use connection pooling, and if the user doesn’t close the stream we could run out of connections

    • + +
  • +

    for database based data stores, for some databases (MySQL), binaries are fully read in memory, which results in out-of-memory

    • + +
  • +

    binaries that are similar are always stored separately no matter what

    • +
+

Those problems are solved in Oak BlobStores, because binaries are split into blocks of 2 MB. This is similar to how DropBox works internally: http://serverfault.com/questions/52861/how-does-dropbox-version-upload-large-files - blocks are processed in memory so that temp files are never needed, and blocks are cached. File handles don’t need to be kept open. Sharding is trivial because each block is processed separately.

+

Binaries that are similar: in the BlobStore, currently, they are stored separately except if some of the 2 MB blocks match. However, the algorithm in the BlobStore would allow to re-use all matching parts, because in the BlobStore, concatenating blob ids means concatenating the data.

+

Another change was that most DataStore implementations use SHA-1, while the BlobStore uses SHA-256. Using SHA-256 will be a requirement at some point, see also http://en.wikipedia.org/wiki/SHA-2 “Federal agencies … must use the SHA-2 family of hash functions for these applications after 2010”. This might affect some potential users.

+
+
+
+ +
+ + + \ No newline at end of file Modified: jackrabbit/site/live/oak/docs/construct.html URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/construct.html?rev=1532415&r1=1532414&r2=1532415&view=diff ============================================================================== --- jackrabbit/site/live/oak/docs/construct.html (original) +++ jackrabbit/site/live/oak/docs/construct.html Tue Oct 15 16:21:53 2013 @@ -1,400 +1,400 @@ - - - - - - - - - Jackrabbit Oak - - - - - - - - - - - - - - - - - - - Fork me on GitHub - - - - - - -
-
-
- - - - - - - - - - - -
- -
-
- - -
- - - - - -
-
-
- - - - - - -
- -
- - - - -
- -
-
-
- - Built by Maven - -
-
-
- - -
- -

Repository construction

-

Oak comes with a simple mechanism for constructing content repositories for use in embedded deployments and test cases. This article describes this mechanism. Deployments in managed environments like OSGi should use the native construction/configuration mechanism of the environment.

-

The core class to use is called Oak and can be found in the org.apache.jackrabbit.oak package inside oak-core. It takes a MicroKernel instance and wraps it into a ContentRepository:

- -
-
MicroKernel kernel = ...;
-ContentRepository repository = new Oak(kernel).createContentRepository();
-
-

For test purposes you can use the default constructor that automatically instantiates an in-memory MicroKernel for use with the repository. And if you’re only using the test repository for a single ContentSession or just a singe Root, then you can shortcut the login steps by using either of the last two statements below:

- -
-
ContentRepository repository = new Oak().createContentRepository();
-ContentSession session = new Oak().createContentSession();
-Root root = new Oak().createRoot();
-
-

By default no pluggable components are associated with the created repository, so all login attempts will work and result in full write access. There’s also no need to close the sessions or otherwise release acquired resources, as normal garbage collection will take care of everything.

-

To add extra functionality like type validation or indexing support, use the with() method. The method takes all kinds of Oak plugins and adds them to the repository to be created. The method returns the Oak instance being used, so you can chain method calls like this:

- -
-
ContentRepository repository = new Oak(kernel)
-    .with(new InitialContent())        // add initial content
-    .with(new DefaultTypeEditor())     // automatically set default types
-    .with(new NameValidatorProvider()) // allow only valid JCR names
-    .with(new SecurityProviderImpl())  // use the default security
-    .with(new PropertyIndexHook())     // simple indexing support
-    .with(new PropertyIndexProvider()) // search support for the indexes
-    .createContentRepository();
-
-

As you can see, constructing a fully featured JCR repository like this will require quite a few plugins. To avoid having to specify them all whenever constructing a new repository, we also have a class called Jcr in the org.apache.jackrabbit.oak.jcr package in oak-jcr. That class works much like the Oak class, but it constructs javax.jcr.Repository instances instead of ContentRepositories and automatically includes all the plugin components needed for proper JCR functionality:

- -
-
MicroKernel kernel = ...;
-Repository repository = new Jcr(kernel).createRepository();
-
-

The Jcr class supports all the same with() methods as the Oak class does, so you can easily extend the constructed JCR repository with custom functionality if you like. For test purposes the Jcr class also has an empty default constructor that works like the one in the Oak class.

-
-
-
- -
- - - + + + + + + + + + Jackrabbit Oak - + + + + + + + + + + + + + + + + + + Fork me on GitHub + + + + + + +
+
+
+ + + + + + + + + + + +
+ +
+
+ + +
+ + + + + +
+
+
+ + + + + + +
+ +
+ + + + +
+ +
+
+
+ + Built by Maven + +
+
+
+ + +
+ +

Repository construction

+

Oak comes with a simple mechanism for constructing content repositories for use in embedded deployments and test cases. This article describes this mechanism. Deployments in managed environments like OSGi should use the native construction/configuration mechanism of the environment.

+

The core class to use is called Oak and can be found in the org.apache.jackrabbit.oak package inside oak-core. It takes a MicroKernel instance and wraps it into a ContentRepository:

+ +
+
MicroKernel kernel = ...;
+ContentRepository repository = new Oak(kernel).createContentRepository();
+
+

For test purposes you can use the default constructor that automatically instantiates an in-memory MicroKernel for use with the repository. And if you’re only using the test repository for a single ContentSession or just a singe Root, then you can shortcut the login steps by using either of the last two statements below:

+ +
+
ContentRepository repository = new Oak().createContentRepository();
+ContentSession session = new Oak().createContentSession();
+Root root = new Oak().createRoot();
+
+

By default no pluggable components are associated with the created repository, so all login attempts will work and result in full write access. There’s also no need to close the sessions or otherwise release acquired resources, as normal garbage collection will take care of everything.

+

To add extra functionality like type validation or indexing support, use the with() method. The method takes all kinds of Oak plugins and adds them to the repository to be created. The method returns the Oak instance being used, so you can chain method calls like this:

+ +
+
ContentRepository repository = new Oak(kernel)
+    .with(new InitialContent())        // add initial content
+    .with(new DefaultTypeEditor())     // automatically set default types
+    .with(new NameValidatorProvider()) // allow only valid JCR names
+    .with(new SecurityProviderImpl())  // use the default security
+    .with(new PropertyIndexHook())     // simple indexing support
+    .with(new PropertyIndexProvider()) // search support for the indexes
+    .createContentRepository();
+
+

As you can see, constructing a fully featured JCR repository like this will require quite a few plugins. To avoid having to specify them all whenever constructing a new repository, we also have a class called Jcr in the org.apache.jackrabbit.oak.jcr package in oak-jcr. That class works much like the Oak class, but it constructs javax.jcr.Repository instances instead of ContentRepositories and automatically includes all the plugin components needed for proper JCR functionality:

+ +
+
MicroKernel kernel = ...;
+Repository repository = new Jcr(kernel).createRepository();
+
+

The Jcr class supports all the same with() methods as the Oak class does, so you can easily extend the constructed JCR repository with custom functionality if you like. For test purposes the Jcr class also has an empty default constructor that works like the one in the Oak class.

+
+
+
+ +
+ + + \ No newline at end of file Modified: jackrabbit/site/live/oak/docs/css/apache-maven-fluido-1.3.0.min.css URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/css/apache-maven-fluido-1.3.0.min.css?rev=1532415&r1=1532414&r2=1532415&view=diff ============================================================================== --- jackrabbit/site/live/oak/docs/css/apache-maven-fluido-1.3.0.min.css (original) +++ jackrabbit/site/live/oak/docs/css/apache-maven-fluido-1.3.0.min.css Tue Oct 15 16:21:53 2013 @@ -1,9 +1,9 @@ -/*! - * Bootstrap v2.1.0 - * - * Copyright 2012 Twitter, Inc - * Licensed under the Apache License v2.0 - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Designed and built with all the love in the world @twitter by @mdo and @fat. +/*! + * Bootstrap v2.1.0 + * + * Copyright 2012 Twitter, Inc + * Licensed under the Apache License v2.0 + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Designed and built with all the love in the world @twitter by @mdo and @fat. [... 3 lines stripped ...] Modified: jackrabbit/site/live/oak/docs/css/print.css URL: http://svn.apache.org/viewvc/jackrabbit/site/live/oak/docs/css/print.css?rev=1532415&r1=1532414&r2=1532415&view=diff ============================================================================== --- jackrabbit/site/live/oak/docs/css/print.css (original) +++ jackrabbit/site/live/oak/docs/css/print.css Tue Oct 15 16:21:53 2013 @@ -1,23 +1,23 @@ -/* - * 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. - */ - -/* $Id: print.css 1201871 2011-11-14 20:18:24Z simonetripodi $ */ - -#banner, #footer, #leftcol, #breadcrumbs, .docs #toc, .docs .courtesylinks, #leftColumn, #navColumn {display: none !important;} +/* + * 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. + */ + +/* $Id: print.css 1201871 2011-11-14 20:18:24Z simonetripodi $ */ + +#banner, #footer, #leftcol, #breadcrumbs, .docs #toc, .docs .courtesylinks, #leftColumn, #navColumn {display: none !important;} #bodyColumn, body.docs div.docs {margin: 0 !important;border: none !important} \ No newline at end of file