Hacking DiscoverEd - Revision history

Kat Walsh: Reverted edits by Couponcode (talk) to last revision by Nathan Yergler

2013-09-16T17:37:34Z

Reverted edits by Couponcode (talk) to last revision by Nathan Yergler

Couponcode: /* I get a big long Java backtrace talking about Jena and MySQL */

2013-08-16T16:16:15Z

‎I get a big long Java backtrace talking about Jena and MySQL

Couponcode: /* JAVA_HOME on a Mac */

2013-08-16T16:14:44Z

‎JAVA_HOME on a Mac

Nathan Yergler at 02:17, 24 August 2010

2010-08-24T02:17:37Z

Nathan Yergler at 02:16, 24 August 2010

2010-08-24T02:16:41Z

Lotia: /* Hacking The Code */ add info for indenting with spaces instead of tabs in Eclipse 3.5

2010-06-21T20:08:36Z

‎Hacking The Code: add info for indenting with spaces instead of tabs in Eclipse 3.5

Dithyramble: /* Check out and build the source code */ remove dollar signs from some of the code

2010-06-17T14:52:45Z

‎Check out and build the source code: remove dollar signs from some of the code

Dithyramble: /* Troubleshooting */ +two more troubleshooting sections

2010-06-16T14:20:27Z

‎Troubleshooting: +two more troubleshooting sections

Dithyramble: /* Troubleshooting */ +section about what to do if you're missing build/plugins

2010-06-16T14:17:58Z

‎Troubleshooting: +section about what to do if you're missing build/plugins

Dithyramble: /* AccessControlException */ formatting edit

2010-06-15T18:59:59Z

‎AccessControlException: formatting edit

@@ Line 84: / Line 84: @@
 ==== I get a big long Java backtrace talking about Jena and MySQL ====
-If you've configured DiscoverEd to use MySQL as the database backend, you'll need to create the database first, [http://kcouponcode.com read more here]
+If you've configured DiscoverEd to use MySQL as the database backend, you'll need to create the database first.
 ==== Database permissions ====
@@ Line 98: / Line 98: @@
 JAVA_HOME=`/usr/libexec/java_home`
 to .bash_profile and it will set JAVA_HOME each time you invoke a shell. (This is a good idea!)
 ==== Error message: "Feature 'http://apache.org/xml/features/xinclude' is not recognized." ====

@@ Line 84: / Line 84: @@
 ==== I get a big long Java backtrace talking about Jena and MySQL ====
-If you've configured DiscoverEd to use MySQL as the database backend, you'll need to create the database first.
+If you've configured DiscoverEd to use MySQL as the database backend, you'll need to create the database first, [http://kcouponcode.com read more here]
 ==== Database permissions ====

@@ Line 98: / Line 98: @@
 JAVA_HOME=`/usr/libexec/java_home`
 to .bash_profile and it will set JAVA_HOME each time you invoke a shell. (This is a good idea!)
 ==== Error message: "Feature 'http://apache.org/xml/features/xinclude' is not recognized." ====

← Older revision		Revision as of 02:17, 24 August 2010
Line 1:		Line 1:
	How to deploy a hackable DiscoverEd, make changes, and update your deployment		How to deploy a hackable DiscoverEd, make changes, and update your deployment
		+	{{Infobox\|These instructions assume a Unix-like environment; please help us by contributing information on Windows-based development.}}
		+	{{stub}}

	[[Category:DiscoverEd]]		[[Category:DiscoverEd]]

@@ Line 13: / Line 13: @@
 = Add a curator and a feed =
 DiscoverEd uses feeds to help identify resources to crawl.  Feeds are provided by curators, who can also provide metadata about resources.
 <pre>
@@ Line 39: / Line 37: @@
 = Run the web application =
-'''Edit conf/nutch-site.xml to point to your crawl location.'''
+You can run the web front-end using [http://en.wikipedia.org/wiki/Jetty_%28web_server%29 Jetty] (included with your checkout) by running:
-<code>
+<pre>
-$ ant war
+$ ant -f dedbuild.xml serve
-$ cp build/nutch-1.1.war [substitute the location for your J2EE container here; ie, /var/lib/tomcat6/webapps ]
+</pre>
 = Hacking The Code  =
@@ Line 83: / Line 80: @@
 = Troubleshooting =
-==== I get a big long Java backtrace talking about Jena and MySQL the first time I run the code ====
+==== I get a big long Java backtrace talking about Jena and MySQL ====
-This means that you need to CREATE DATABASE discovered in MySQL. DiscoverEd stores its data in MySQL by default, and you need to either (a) create that database, or (b) choose a different configuration file.
+If you've configured DiscoverEd to use MySQL as the database backend, you'll need to create the database first.
 ==== Database permissions ====
@@ Line 101: / Line 98: @@
 ==== Error message: "Feature 'http://apache.org/xml/features/xinclude' is not recognized." ====
 "You probably have an older version of Xerces somewhere in your classpath or something is overriding the default parser configuration with one that doesn't support XInclude." (http://marc.info/?l=xerces-j-user&m=117066278506146&w=2)

← Older revision		Revision as of 20:08, 21 June 2010
Line 62:		Line 62:

	Generally, the plugin may depend upon code in the ded/src/java tree, but classes in the plugin may not be available to that code.		Generally, the plugin may depend upon code in the ded/src/java tree, but classes in the plugin may not be available to that code.
		+
		+	'''Note:''' The DiscoverEd developers will consider you extra special if you indent your code using spaces instead of tabs. You may even earn a gold star.
		+
		+	To use spaces for all indentation for all Java projects in Eclipse 3.5 (Galileo):
		+	# Open Preferences
		+	# Expand the Java group
		+	# Expand the Code Style subgroup within the Java group
		+	# Select Formatter
		+	# Click on "New" in the Formatter section and name your profile
		+	# Check that the "Indentation" tab is active
		+	# Select "Spaces only" from the "Tab policy" dropdown
		+	# Click "Apply" and or "OK"
		+
		+	You may also do this on a per-project basis by setting it as a project property. The general process is the same.

	= Commiting Changes and Merging to the Main Repository =		= Commiting Changes and Merging to the Main Repository =

@@ Line 6: / Line 6: @@
 <pre>
-$ git clone git://gitorious.org/discovered/repo.git discovered
+git clone git://gitorious.org/discovered/repo.git discovered
-$ cd discovered
+cd discovered
-$ git checkout (whatever branch we're working on today)
+git checkout (whatever branch we're working on today)
-$ ant
+ant
 </pre>

← Older revision		Revision as of 14:20, 16 June 2010
Line 112:		Line 112:
	==== Missing build/plugins ====		==== Missing build/plugins ====

−	Be sure to run `ant` in the root repo directory.	+	Be sure to run ant in the root repo directory.
		+
		+	==== Missing parse-mp3 plugin ====
		+
		+	Remove that source folder from the build path (in Eclimse, Project > Properties > Java Build Path > Source.
		+
		+	==== Eclipse complains: Wrong version number in .class file ====
		+
		+	Use Java 1.6 as your compiler. Be sure to use the right JVM for this project.

← Older revision		Revision as of 14:17, 16 June 2010
Line 109:		Line 109:

	This is obviously inappropriate for any site running a public instance of DiscoverEd. But it might be useful for your local dev environment. If you know how to specify a class level permission, please update this document.		This is obviously inappropriate for any site running a public instance of DiscoverEd. But it might be useful for your local dev environment. If you know how to specify a class level permission, please update this document.
		+
		+	==== Missing build/plugins ====
		+
		+	Be sure to run `ant` in the root repo directory.

@@ Line 94: / Line 94: @@
   SEVERE: Exception sending context initialized event to listener instance of class org.apache.nutch.searcher.NutchBean$NutchBeanConstructor
-java.lang.RuntimeException: java.security.AccessControlException: access denied (java.lang.reflect.ReflectPermission suppressAccessChecks)
+ java.lang.RuntimeException: java.security.AccessControlException: access denied (java.lang.reflect.ReflectPermission suppressAccessChecks)
          at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:115)
          at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1377)