/*
- * Copyright (C) 2001, 2002 The Mir-coders group
+ * Copyright (C) 2005 The Mir-coders group
*
* This file is part of Mir.
*
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* In addition, as a special exception, The Mir-coders gives permission to link
- * the code of this program with the com.oreilly.servlet library, any library
- * licensed under the Apache Software License, The Sun (tm) Java Advanced
- * Imaging library (JAI), The Sun JIMI library (or with modified versions of
- * the above that use the same license as the above), and distribute linked
- * combinations including the two. You must obey the GNU General Public
- * License in all respects for all of the code used other than the above
- * mentioned libraries. If you modify this file, you may extend this exception
- * to your version of the file, but you are not obligated to do so. If you do
- * not wish to do so, delete this exception statement from your version.
+ * the code of this program with any library licensed under the Apache Software License.
+ * You must obey the GNU General Public License in all respects for all of the code used
+ * other than the above mentioned libraries. If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
*/
-
package mir.config;
+import multex.Exc;
+import multex.Failure;
+import org.apache.commons.collections.ExtendedProperties;
+
+import javax.servlet.ServletContext;
import java.io.File;
-import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
-import javax.servlet.ServletContext;
-
-import multex.Exc;
-import multex.Failure;
-
-import org.apache.commons.configuration.PropertiesConfiguration;
-
-
/**
* @author idefix
*/
-public class MirPropertiesConfiguration extends PropertiesConfiguration {
+public class MirPropertiesConfiguration extends ExtendedProperties {
private static MirPropertiesConfiguration instance;
private static ServletContext context;
- private static String contextPath;
-
- /**
- * Constructor for MirPropertiesConfiguration.
- */
- private MirPropertiesConfiguration(ServletContext ctx, String ctxPath)
- throws IOException {
- super(ctx.getRealPath("/WEB-INF/etc/") + "/config.properties",
- ctx.getRealPath("/WEB-INF/etc/") + "/default.properties");
- this.addProperty("Home", ctx.getRealPath("/WEB-INF/")+"/");
- this.addProperty("RootUri", ctxPath);
- }
-
- public static synchronized MirPropertiesConfiguration instance()
- throws PropertiesConfigExc {
- if(instance == null){
- if(context == null || contextPath == null || contextPath.length() == 0){
- throw new MirPropertiesConfiguration.PropertiesConfigExc("Context was not set");
+
+ private File home;
+
+ /**
+ * Constructor for MirPropertiesConfiguration.
+ */
+ private MirPropertiesConfiguration(ServletContext ctx) throws IOException {
+ //loading the defaults-config
+ super(ctx.getRealPath("/WEB-INF/") + "/default.properties");
+
+ //loading the user-config
+ ExtendedProperties userConfig =
+ new ExtendedProperties(ctx.getRealPath("/WEB-INF/etc/") + "/config.properties");
+
+ //merging them to one config while overriding the defaults
+ this.combine(userConfig);
+
+ home = new File(ctx.getRealPath("/WEB-INF/")+"/");
+ }
+
+ public static synchronized MirPropertiesConfiguration instance() {
+ if (instance == null) {
+ if (context == null) {
+ throw new Error("Context was not set");
}
+
try {
- instance = new MirPropertiesConfiguration(context,contextPath);
- } catch (IOException e) {
- e.printStackTrace();
- }
+ instance = new MirPropertiesConfiguration(context);
+ }
+ catch (IOException e) {
+ throw new Error("cannot load configuration: " + e.toString());
+ }
}
+
return instance;
}
/**
* Sets the context.
+ *
* @param context The context to set
*/
public static void setContext(ServletContext context) {
MirPropertiesConfiguration.context = context;
}
-
+
/**
- * Sets the contextPath.
- * @param contextPath The contextPath to set
+ * Returns the context.
+ *
+ * @return ServletContext
*/
- public static void setContextPath(String contextPath) {
- MirPropertiesConfiguration.contextPath = contextPath;
+ public static ServletContext getContext() {
+ return context;
}
-
- public Map allSettings(){
- Iterator iterator = this.getKeys();
- Map returnMap = new HashMap();
- while(iterator.hasNext()){
- String key = (String)iterator.next();
- returnMap.put(key,this.getProperty(key));
- }
+
+ /**
+ * Returns all properties in a Map
+ * @return Map
+ */
+ public Map allSettings() {
+ Iterator iterator = this.getKeys();
+ Map returnMap = new HashMap();
+ while (iterator.hasNext()) {
+ String key = (String) iterator.next();
+ Object o = this.getProperty(key);
+
+ returnMap.put(key, o);
+ }
+
+ // ML: hack for now
+ if (!returnMap.containsKey("Producer.DocRoot")) {
+ returnMap.put("Producer.DocRoot", "");
+ }
+
return returnMap;
}
+ /**
+ * Return mir's home directory.
+ * Normally this is the <code>WEB-INF</code> dir of the
+ * deployed mir servlets.
+ */
+ public File getHome() {
+ return home;
+ }
/**
- * Returns the context.
- * @return ServletContext
+ * Returns a file based on a configuration setting.
+ *
+ * The file may be configured with an absolute path, or
+ * it may be a relative path.
+ *
+ * Relative paths work relative to {@link #home} :
+ * normally this is the <code>WEB-INF</code> dir in a
+ * deployed java servlet.
*/
- public static ServletContext getContext() {
- return context;
+ public File getFile(String aKey) {
+ String path = getString(aKey);
+
+ File result = new File(path);
+ if (result.isAbsolute()) {
+ return result;
+ }
+ return new File(home, path);
}
-
- public String getStringWithHome(String key){
- String returnString = getString(key);
- if(returnString == null){
- returnString = new String();
- }
- return getString("Home") + returnString;
- }
-
- public File getFile(String key) throws FileNotFoundException{
- String path = getStringWithHome(key);
- File returnFile = new File(path);
- if(returnFile.exists()){
- return returnFile;
- } else {
- throw new FileNotFoundException();
- }
- }
-
+
/**
- * @see org.apache.commons.configuration.Configuration#getString(java.lang.String)
+ * @return the vlaue of this property as String
+ * @param key the key of this property
*/
public String getString(String key) {
- if(super.getString(key) == null){
+ return getString(key, "");
+ }
+
+
+ /**
+ * @return the value of this property as String
+ * @param aKey the key of the property
+ * @param aDefaultValue the default value of this property if it is null
+ * @see org.apache.commons.collections.ExtendedProperties#getString(java.lang.String, java.lang.String)
+ */
+ public String getString(String aKey, String aDefaultValue) {
+ if (aDefaultValue == null) {
+ aDefaultValue = "";
+ }
+ Object result = getProperty(aKey);
+
+ if (result == null){
+ return aDefaultValue;
+ }
+
+ if (result instanceof String) {
+ return (String) result;
+ }
+
+ return result.toString();
+ }
+
+ public boolean getBoolean(String aKey, boolean aDefaultValue) {
+ try {
+ return getBoolean(aKey);
+ }
+ catch (Throwable t) {
+ return aDefaultValue;
+ }
+ }
+
+ public boolean getBoolean(String aKey) {
+ String value = getString(aKey).trim();
+
+ return "1".equals(value) || "y".equalsIgnoreCase(value) ||
+ "yes".equalsIgnoreCase(value) || "true".equalsIgnoreCase(value);
+ }
+
+ /**
+ * Returns a property according to the given key
+ * @param key the key of the property
+ * @return the value of the property as Object, if no property available it returns a empty String
+ */
+ public Object getProperty(String key) {
+ if (super.getProperty(key) == null) {
return new String();
}
- return super.getString(key);
+
+ return super.getProperty(key);
}
-
+
/**
* @author idefix
*/
public static class PropertiesConfigExc extends Exc {
-
/**
* Constructor for PropertiesConfigExc.
- * @param arg0
*/
public PropertiesConfigExc(String msg) {
super(msg);
* @author idefix
*/
public static class PropertiesConfigFailure extends Failure {
-
/**
* Constructor for PropertiesConfigExc.
- * @param arg0
*/
public PropertiesConfigFailure(String msg, Throwable cause) {
- super(msg,cause);
+ super(msg, cause);
}
}
-
}
projects / mir.git / blobdiff