[Yanel-commits] rev 33253 - public/yanel/trunk/src/core/java/org/wyona/yanel/core/source

[michi at wyona.com]

Author: michi
Date: 2008-03-11 14:58:46 +0100 (Tue, 11 Mar 2008)
New Revision: 33253

Added:
   public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTHtdocsResolver.java
   public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTYanelHtdocsResolver.java
Log:
thanks for Simon two more resolvers added in order to read from htdocs of resource

Added: public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTHtdocsResolver.java
===================================================================
--- public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTHtdocsResolver.java	                        (rev 0)
+++ public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTHtdocsResolver.java	2008-03-11 13:58:46 UTC (rev 33253)
@@ -0,0 +1,68 @@
+package org.wyona.yanel.core.source;
+
+import java.io.File;
+import java.io.InputStream;
+
+import javax.xml.transform.Source;
+import javax.xml.transform.URIResolver;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.log4j.Logger;
+import org.wyona.yanel.core.Resource;
+
+
+/**
+ * Resolves URIs which point to a node in a repository of a yanel realm.
+ * 
+ * Syntax:
+ * rthtdocs:{path}
+ * 
+ * e.g.
+ * rthtdocs:/foo/bar.xml
+ * 
+ * TODO: support access to other resource types (e.g. rthtdocs:resourcTypeIdentifier:/foo/bar.xml) 
+ * 
+ */
+public class RTHtdocsResolver implements URIResolver {
+
+    private static Logger log = Logger.getLogger(RTHtdocsResolver.class);
+    private static final String SCHEME = "rthtdocs";
+    private Resource resource;
+    
+    public RTHtdocsResolver(Resource resource) {
+        this.resource = resource;
+    }
+
+    public Source resolve(String href, String base) throws SourceException {
+        String prefix = SCHEME + ":";
+        // only accept 'rthtdocs:' URIs
+        if (href == null || !href.startsWith(prefix)) {
+            return null;
+        }
+        // we can't resolve to a Collection (indicated by a trailing '/')
+        if (href.endsWith("/")){
+            return null;
+        }
+        String path = href.substring(prefix.length());
+        try {
+            String fullyQualifiedName = resource.getClass().getName();
+            int lastDot = fullyQualifiedName.lastIndexOf ('.');
+            String packageName = fullyQualifiedName.substring (0, lastDot);
+            if (log.isDebugEnabled()) {
+                log.debug("Package: " + packageName);
+            }
+            InputStream in = resource.getClass().getClassLoader().getResource(packageName.replace('.','/') + "/htdocs" + path).openStream();
+            return new StreamSource(in);
+        } catch (Exception e) {
+            try {
+                File resourceFile = new File(resource.getRTD().getConfigFile().getParentFile().getAbsolutePath() + "/htdocs" + path.replace('/', File.separatorChar));
+                InputStream in = new java.io.FileInputStream(resourceFile);
+                return new StreamSource(in);
+            } catch (Exception ex) {
+                String errorMsg = "Could not resolve URI: " + path + ": " + e.toString();
+                log.error(errorMsg, e);
+                throw new SourceException(errorMsg, e);
+            }
+        }
+    }
+}

Added: public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTYanelHtdocsResolver.java
===================================================================
--- public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTYanelHtdocsResolver.java	                        (rev 0)
+++ public/yanel/trunk/src/core/java/org/wyona/yanel/core/source/RTYanelHtdocsResolver.java	2008-03-11 13:58:46 UTC (rev 33253)
@@ -0,0 +1,68 @@
+package org.wyona.yanel.core.source;
+
+import java.io.File;
+import java.io.InputStream;
+
+import javax.xml.transform.Source;
+import javax.xml.transform.URIResolver;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.log4j.Logger;
+import org.wyona.yanel.core.Resource;
+
+
+/**
+ * Resolves URIs which point to a node in a repository of a yanel realm.
+ * 
+ * Syntax:
+ * rtyanelhtdocs:{path}
+ * 
+ * e.g.
+ * rtyanelhtdocs:/foo/bar.xml
+ * 
+ * TODO: support access to other resource types (e.g. rtyanelhtdocs:resourcTypeIdentifier:/foo/bar.xml)  
+ * 
+ */
+public class RTYanelHtdocsResolver implements URIResolver {
+
+    private static Logger log = Logger.getLogger(RTYanelHtdocsResolver.class);
+    private static final String SCHEME = "rtyanelhtdocs";
+    private Resource resource;
+    
+    public RTYanelHtdocsResolver(Resource resource) {
+        this.resource = resource;
+    }
+
+    public Source resolve(String href, String base) throws SourceException {
+        String prefix = SCHEME + ":";
+        // only accept 'rtyanelhtdocs:' URIs
+        if (href == null || !href.startsWith(prefix)){
+            return null;
+        }
+        // we can't resolve to a Collection (indicated by a trailing '/')
+        if (href.endsWith("/")){
+            return null;
+        }
+        String path = href.substring(prefix.length());
+        try {
+            String fullyQualifiedName = resource.getClass().getName();
+            int lastDot = fullyQualifiedName.lastIndexOf ('.');
+            String packageName = fullyQualifiedName.substring (0, lastDot);
+            if (log.isDebugEnabled()) {
+                log.debug("Package: " + packageName);
+            }
+            InputStream in = resource.getClass().getClassLoader().getResource(packageName.replace('.','/') + "/yanel-htdocs" + path).openStream();
+            return new StreamSource(in);
+        } catch (Exception e) {
+            try {
+                File resourceFile = new File(resource.getRTD().getConfigFile().getParentFile().getAbsolutePath() + "/yanel-htdocs" + path.replace('/', File.separatorChar));
+                InputStream in = new java.io.FileInputStream(resourceFile);
+                return new StreamSource(in);
+            } catch (Exception ex) {
+                String errorMsg = "Could not resolve URI: " + path + ": " + e.toString();
+                log.error(errorMsg, e);
+                throw new SourceException(errorMsg, e);
+            }
+        }
+    }
+}