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Migrate from JDBCProvider to plain text files; #1

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2f75280
Migrate from JDBCProvider to plain text files;
Nov 29, 2017
a290e54
Changed imports to conform to JSPWiki 10.x
Nov 29, 2017
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4 changes: 2 additions & 2 deletions pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -29,13 +29,13 @@
<classifier>classes</classifier>
<scope>provided</scope>
</dependency>

<!--
<dependency>
<groupId>de.jwi.jspwiki</groupId>
<artifactId>GitFileProvider</artifactId>
<version>0.5.0-SNAPSHOT</version>
</dependency>

-->
</dependencies>

</project>
95 changes: 82 additions & 13 deletions src/main/java/de/jwi/jspwiki/migrate/Migrator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,29 +18,35 @@

package de.jwi.jspwiki.migrate;

import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;

import javax.management.RuntimeErrorException;

import org.apache.wiki.PageManager;
import org.apache.wiki.WikiContext;
import org.apache.wiki.WikiEngine;
import org.apache.wiki.WikiPage;
import org.apache.wiki.api.exceptions.PluginException;
import org.apache.wiki.api.plugin.InitializablePlugin;
import org.apache.wiki.api.plugin.WikiPlugin;
import org.apache.wiki.attachment.Attachment;
import org.apache.wiki.attachment.AttachmentManager;
import org.apache.wiki.event.WikiEngineEvent;
import org.apache.wiki.event.WikiEvent;
import org.apache.wiki.event.WikiEventListener;
import org.apache.wiki.event.WikiEventUtils;
import org.apache.wiki.providers.BasicAttachmentProvider;
import org.apache.wiki.providers.VersioningFileProvider;
import org.apache.wiki.providers.WikiAttachmentProvider;
import org.apache.wiki.providers.WikiPageProvider;

import de.jwi.jspwiki.git.GitFileProvider;



public class Migrator implements WikiPlugin,InitializablePlugin,WikiEventListener
{
Expand All @@ -67,7 +73,7 @@ public void initialize(WikiEngine engine) throws PluginException

}

public String execute(WikiContext context, Map<String, String> params) throws PluginException
public String execute(WikiContext context, @SuppressWarnings("rawtypes") Map map) throws PluginException
{
if (true)
{
Expand All @@ -81,7 +87,7 @@ public void actionPerformed(WikiEvent event)
System.out.println("Migrator.actionPerformed()");

Properties p = new Properties(wikiProperties);
p.put(GitFileProvider.PROP_PAGEDIR, wikiProperties.getProperty("de.jwi.jspwiki.git.migrate.Migrator.pageDir"));
//p.put(GitFileProvider.PROP_PAGEDIR, wikiProperties.getProperty("de.jwi.jspwiki.git.migrate.Migrator.pageDir"));

try
{
Expand All @@ -95,16 +101,20 @@ public void actionPerformed(WikiEvent event)

private void migrate(Properties properties) throws Exception
{
GitFileProvider gitFileProvider = new GitFileProvider();
gitFileProvider.initialize(engine, properties);
VersioningFileProvider versioningFileProvider = new VersioningFileProvider();
versioningFileProvider.initialize(engine, properties);

BasicAttachmentProvider basicAttachmentProvider = new BasicAttachmentProvider();
basicAttachmentProvider.initialize(engine, properties);

PageManager pageManager = engine.getPageManager();
Collection allPages = pageManager.getAllPages();
@SuppressWarnings("unchecked")
Collection<WikiPage> allPages = pageManager.getAllPages();

Iterator it = allPages.iterator();
Iterator<WikiPage> it = allPages.iterator();
while (it.hasNext())
{
WikiPage p = (WikiPage)it.next();
WikiPage p = it.next();

String pageName = p.getName();

Expand All @@ -114,17 +124,76 @@ private void migrate(Properties properties) throws Exception

int v = 1;

// migrate the versions of the page
while (v <= cv)
{
WikiPage pvi = pageManager.getPageInfo(pageName, v);
String content = pageManager.getPageText(pageName, v);
String content = pageManager.getPageText(pageName, v); // here

try {
Thread.sleep(100); // too many open connections: sleep a bit
} catch (InterruptedException e) {
// nothing
}

System.out.println(String.format("%04d/%d %s", v, cv, pageName));

gitFileProvider.putPageText(pvi, content);
versioningFileProvider.putPageText(pvi, content);

v++;
}

}

// migrate attachments
AttachmentManager attachmentManager = engine.getAttachmentManager();
WikiAttachmentProvider attProvider = attachmentManager.getCurrentProvider();
@SuppressWarnings("unchecked")
Collection<Attachment> allAttachments = attachmentManager.getAllAttachments();

Iterator<Attachment> attIt = allAttachments.iterator();
while (attIt.hasNext()) {
Attachment att = (Attachment) attIt.next();

String attName = att.getName();

int latestVersion = att.getVersion();
int currentVersion = 1;

while (currentVersion <= latestVersion) {
Attachment attV = attachmentManager.getAttachmentInfo(
attName, currentVersion);

InputStream attachmentData = null;
try {
attachmentData = attProvider.getAttachmentData(attV);

System.out.println(String.format("%04d/%d %s", currentVersion, latestVersion, attName));

basicAttachmentProvider.putAttachmentData(att, attachmentData);
} finally {
close(attachmentData);
}

try {
Thread.sleep(100); // too many open connections: sleep a bit
} catch (InterruptedException e) {
// nothing
}


++currentVersion;
}
}
}

private void close(Closeable cl) {
if (cl != null) {
try {
cl.close();
} catch (IOException e) {
// ignore
}
}
}
}