proyal 2002/07/16 11:09:01
Modified: src/java/org/apache/avalon/phoenix/components/configuration
FileSystemPersistentConfigurationRepository.java
Added: src/java/org/apache/avalon/phoenix/components/configuration
ConfigurationDirectoryFilter.java
ConfigurationFileFilter.java ConfigurationKey.java
MergedConfiguration.java
Log:
* Repository will now load config blocks from
PHOENIX_HOME/conf/apps/<app>/<block>.xml. The config
loaded from disk is merged with the config from the SAR
using a MergedConfiguration.
* Inner classes removed and made package level.
Revision Changes Path
1.3 +69 -71
jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/components/configuration/FileSystemPersistentConfigurationRepository.java
Index: FileSystemPersistentConfigurationRepository.java
===================================================================
RCS file:
/home/cvs/jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/components/configuration/FileSystemPersistentConfigurationRepository.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- FileSystemPersistentConfigurationRepository.java 15 Jul 2002 16:17:23 -0000
1.2
+++ FileSystemPersistentConfigurationRepository.java 16 Jul 2002 18:09:00 -0000
1.3
@@ -24,7 +24,7 @@
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
-import org.apache.avalon.framework.configuration.DefaultConfiguration;
+import org.apache.avalon.framework.configuration.DefaultConfigurationBuilder;
import org.apache.avalon.framework.configuration.DefaultConfigurationSerializer;
import org.apache.avalon.framework.context.Context;
import org.apache.avalon.framework.context.DefaultContext;
@@ -47,6 +47,7 @@
private static final Resources REZ =
ResourceManager.getPackageResources(
FileSystemPersistentConfigurationRepository.class );
+ private final HashMap m_persistedConfigurations = new HashMap();
private final HashMap m_configurations = new HashMap();
private String m_phoenixHome;
@@ -129,57 +130,84 @@
public void start()
throws Exception
{
+ loadConfigurations();
}
public void stop()
throws Exception
{
- writeJoinedConfigurationsToDisk( joinConfigurations() );
+ persistConfigurations();
}
- private Map joinConfigurations()
+ private void loadConfigurations()
+ throws IOException, SAXException, ConfigurationException
{
- final Map joinedConfigurations = new HashMap();
+ final File[] apps = m_storageDirectory.listFiles( new
ConfigurationDirectoryFilter() );
- for( Iterator i = this.m_configurations.entrySet().iterator(); i.hasNext();
)
+ for( int i = 0; i < apps.length; i++ )
{
- final Map.Entry entry = ( Map.Entry ) i.next();
- final ConfigurationKey key = ( ConfigurationKey ) entry.getKey();
+ loadConfigurations( apps[i] );
+ }
+ }
- DefaultConfiguration joined =
- ( DefaultConfiguration ) joinedConfigurations.get(
key.getApplication() );
+ private void loadConfigurations( File appPath )
+ throws IOException, SAXException, ConfigurationException
+ {
+ final DefaultConfigurationBuilder builder = new
DefaultConfigurationBuilder();
+ final String app = appPath.getName();
+ final File[] blocks = appPath.listFiles( new ConfigurationFileFilter() );
- if( null == joined )
- {
- joined = new DefaultConfiguration( key.getApplication(), "-" );
+ for( int i = 0; i < blocks.length; i++ )
+ {
+ final String block =
+ blocks[i].getName().substring( 0, blocks[i].getName().indexOf(
".xml" ) );
- joinedConfigurations.put( key.getApplication(), joined );
- }
+ this.m_persistedConfigurations.put( new ConfigurationKey( app, block ),
+ builder.buildFromFile( blocks[i] )
);
- joined.addChild( ( Configuration ) entry.getValue() );
+ if( getLogger().isDebugEnabled() )
+ getLogger().debug( "Loaded persistent configuration [app: " + app
+ + ", block: " + block + "]" );
}
+ }
+
+ private void persistConfigurations()
+ throws SAXException, IOException, ConfigurationException
+ {
+ for( Iterator i = this.m_persistedConfigurations.entrySet().iterator();
i.hasNext(); )
+ {
+ final Map.Entry entry = ( Map.Entry ) i.next();
+ final ConfigurationKey key = ( ConfigurationKey ) entry.getKey();
- return joinedConfigurations;
+ persistConfiguration( key.getApplication(),
+ key.getBlock(),
+ ( Configuration ) entry.getValue() );
+ }
}
- private void writeJoinedConfigurationsToDisk( Map joinedConfigurations )
+ private void persistConfiguration( final String application,
+ final String block,
+ final Configuration configuration )
throws SAXException, IOException, ConfigurationException
{
final DefaultConfigurationSerializer serializer = new
DefaultConfigurationSerializer();
+ final File directory = new File( this.m_storageDirectory, application );
- serializer.setIndent( true );
+ FileUtil.forceMkdir( directory );
- for( Iterator i = joinedConfigurations.entrySet().iterator(); i.hasNext(); )
- {
- final Map.Entry entry = ( Map.Entry ) i.next();
- final String application = ( String ) entry.getKey();
+ if( getLogger().isDebugEnabled() )
+ getLogger().debug( "Serializing configuration to disk [app: " +
application
+ + ", block: " + block + "]" );
- if( getLogger().isDebugEnabled() )
- getLogger().debug( "Serializing configuration to disk: " +
application );
+ serializer.setIndent( true );
+ serializer.serializeToFile( new File( directory, block + ".xml" ),
configuration );
+ }
- serializer.serializeToFile( new File( this.m_storageDirectory,
application + ".xml" ),
- ( Configuration ) entry.getValue() );
- }
+ public void removeConfiguration( String application, String block )
+ {
+ final String name = application + "." + block;
+
+ m_configurations.remove( name );
}
public synchronized void storeConfiguration( final String application,
@@ -187,15 +215,15 @@
final Configuration configuration )
throws ConfigurationException
{
- final ConfigurationKey key = new ConfigurationKey( application, block );
+ final String name = application + "." + block;
if( null == configuration )
{
- //do nothing right now.
+ m_configurations.remove( name );
}
else
{
- m_configurations.put( key, configuration );
+ m_configurations.put( name, configuration );
}
}
@@ -203,57 +231,27 @@
final String block )
throws ConfigurationException
{
- final ConfigurationKey key = new ConfigurationKey( application, block );
- final Configuration configuration = ( Configuration ) m_configurations.get(
key );
+ final String name = application + "." + block;
+ final Configuration c = ( Configuration ) m_configurations.get( name );
+ final Configuration p = ( Configuration ) m_persistedConfigurations.get(
+ new ConfigurationKey( application, block ) );
- if( null == configuration )
+ if( null == c && p == null )
{
final String message = REZ.getString( "config.error.noconfig", block,
application );
throw new ConfigurationException( message );
}
-
- return configuration;
- }
-
- private final class ConfigurationKey
- {
- private final String m_application;
- private final String m_block;
-
- public ConfigurationKey( String application, String block )
+ else if( null == c )
{
- this.m_application = application;
- this.m_block = block;
+ return p;
}
-
- public int hashCode()
+ else if( null == p )
{
- return this.getApplication().hashCode() + this.getBlock().hashCode();
+ return c;
}
-
- public boolean equals( Object obj )
- {
- if( obj instanceof ConfigurationKey )
- {
- final ConfigurationKey key = ( ConfigurationKey ) obj;
-
- return this.getApplication().equals( key.getApplication() )
- && this.getBlock().equals( key.getBlock() );
- }
- else
- {
- return false;
- }
- }
-
- public String getApplication()
- {
- return m_application;
- }
-
- public String getBlock()
+ else
{
- return m_block;
+ return new MergedConfiguration( p, c );
}
}
}
1.1
jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/components/configuration/ConfigurationDirectoryFilter.java
Index: ConfigurationDirectoryFilter.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.avalon.phoenix.components.configuration;
import java.io.FileFilter;
import java.io.File;
class ConfigurationDirectoryFilter implements FileFilter
{
public boolean accept( File pathname )
{
return pathname.isDirectory();
}
}
1.1
jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/components/configuration/ConfigurationFileFilter.java
Index: ConfigurationFileFilter.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.avalon.phoenix.components.configuration;
import java.io.FileFilter;
import java.io.File;
class ConfigurationFileFilter implements FileFilter
{
public boolean accept( File pathname )
{
return pathname.isFile() && pathname.getName().endsWith( ".xml" );
}
}
1.1
jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/components/configuration/ConfigurationKey.java
Index: ConfigurationKey.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.txt file.
*/
package org.apache.avalon.phoenix.components.configuration;
final class ConfigurationKey
{
private final String m_application;
private final String m_block;
public ConfigurationKey( String application, String block )
{
this.m_application = application;
this.m_block = block;
}
public int hashCode()
{
return this.getApplication().hashCode() + this.getBlock().hashCode();
}
public boolean equals( Object obj )
{
if( obj instanceof ConfigurationKey )
{
final ConfigurationKey key = ( ConfigurationKey ) obj;
return this.getApplication().equals( key.getApplication() )
&& this.getBlock().equals( key.getBlock() );
}
else
{
return false;
}
}
public String getApplication()
{
return m_application;
}
public String getBlock()
{
return m_block;
}
}
1.1
jakarta-avalon-phoenix/src/java/org/apache/avalon/phoenix/components/configuration/MergedConfiguration.java
Index: MergedConfiguration.java
===================================================================
/*
* Copyright (C) The Apache Software Foundation. All rights reserved.
*
* This software is published under the terms of the Apache Software License
* version 1.1, a copy of which has been included with this distribution in
* the LICENSE.TXT file.
*/
package org.apache.avalon.phoenix.components.configuration;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.configuration.DefaultConfiguration;
/**
* The MergedConfiguration is a classic Configuration backed by parent
* Configuration. Operations such as getChild return a MergedConfiguration
* encapsulating both a primary and parent configuration. Requests for attribute
* values are resolved against the base configuration initially. If the result
* of the resolution is unsucessful, the request is applied against the parent
* configuration. As a parent may also be a MergedConfiguration, the evaluation
* will be applied until a value is resolved against a class parent Configuration.
*
* The MergedConfiguration will use special attributes on the base configuration's
* children to control how children of the parent and base are combined. In order for
* a child of the base to be merged with a child of the parent, the following must
hold true:
* <ol>
* <li>There is only a single child of both the parent and child with a specified
name
* <i>(TODO: enable a "key attribute" to support merging when multiple items
with
* the same name exist</i>
* </li>
* <li>The child in the <b>base</b> Configuration has an attribute named
* <code>phoenix-configuration:merge</code> and its value is equal to a boolean
* <code>TRUE</code>
* </li>
* </ol>
*
* When viewing the list of attributes for a MergedConfiguration, the
* <code>phoenix-configuration:merge</code> is not included.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Peter Royal</a>
*/
class MergedConfiguration implements Configuration
{
private static final String MERGE_ATTR = "phoenix-configuration:merge";
//TOOD: implement support for key attribute
private static final String KEY_ATTR = "phoenix-configuration:key-attribute";
//=============================================================================
// state
//=============================================================================
/**
* The primary configuration.
*/
private final Configuration m_base;
/**
* The fallback configuration.
*/
private final Configuration m_parent;
//=============================================================================
// constructors
//=============================================================================
/**
* Create a MergedConfiguration with specified parent. The base
* configuration shall override a parent configuration on request for
* attribute values and configuration body values. Unresolved request
* are redirected up the parent chain until a classic configuration is
* reached. Request for child configurations will return a
* new MergedConfiguration referencing the child of the base and
* the child of the primary (i.e. a child configuration chain).
*
* @param base the base Configuration
* @param parent the parent Configuration
*/
public MergedConfiguration( final Configuration base, final Configuration parent
)
{
if( base == null )
{
m_base = new DefaultConfiguration( "-", null );
}
else
{
m_base = base;
}
if( parent == null )
{
m_parent = new DefaultConfiguration( "-", null );
}
else
{
m_parent = parent;
}
}
//=============================================================================
// Configuration
//=============================================================================
/**
* Return the name of the base node.
* @return name of the <code>Configuration</code> node.
*/
public String getName()
{
return m_base.getName();
}
/**
* Return a string describing location of the base Configuration.
* Location can be different for different mediums (ie "file:line" for normal
XML files or
* "table:primary-key" for DB based configurations);
*
* @return a string describing location of Configuration
*/
public String getLocation()
{
return m_base.getLocation();
}
/**
* Returns the namespace the main Configuration node
* belongs to.
* @exception ConfigurationException may be thrown by the underlying
configuration
* @since 4.1
* @return a Namespace identifying the namespace of this Configuration.
*/
public String getNamespace() throws ConfigurationException
{
return m_base.getNamespace();
}
/**
* Return a new <code>MergedConfiguration</code> instance. The configuration may
be merged
* depending upon the value of the <code>phoenix-configuration:merge</code>
attribute in
* the base configuration
*
* @param child The name of the child node.
* @return Configuration
*/
public Configuration getChild( String child )
{
return getChild( child, true );
}
/**
* Return a <code>Configuration</code> instance encapsulating the specified
* child node.
*
* @param child The name of the child node.
* @param createNew If <code>true</code>, a new <code>Configuration</code>
* will be created and returned if the specified child does not exist in either
* the base or parent configuratioin. If <code>false</code>, <code>null</code>
* will be returned when the specified child doesn't exist in either the base or
* the parent.
* @return Configuration
*/
public Configuration getChild( String child, boolean createNew )
{
final Configuration b = m_base.getChild( child, false );
if( null == b )
{
return m_parent.getChild( child, createNew );
}
else if( b.getAttributeAsBoolean( MERGE_ATTR, false ) )
{
return new MergedConfiguration( b, m_parent.getChild( child ) );
}
else
{
return b;
}
}
/**
* Return an <code>Array</code> of <code>Configuration</code>
* elements containing all node children of both base and parent configurations.
* The array order will reflect the order in the source config file, commencing
* with the base configuration. This list will be merged for any children that
satisfy the
* <code>phoenix-configuration:merge</code> rules.
*
* @return All child nodes
*/
public Configuration[] getChildren()
{
final Configuration[] b = m_base.getChildren();
final Configuration[] p = m_parent.getChildren();
final List children = new ArrayList();
final Set parentUsed = new HashSet();
for( int i = 0; i < b.length; i++ )
{
final String name = b[i].getName();
if( isLoneConfiguration( name, b ) //is the only one with this name as a
child here..
&& b[i].getAttributeAsBoolean( MERGE_ATTR, false ) // and we can
merge it
&& isLoneConfiguration( name, p ) ) //and there is only a single
item in the parent to merge to
{
final Configuration parent = m_parent.getChild( name, true );
children.add( new MergedConfiguration( b[i], parent ) );
parentUsed.add( parent );
}
else
{
children.add( b[i] );
}
}
for( int i = 0; i < p.length; i++ )
{
if( !parentUsed.contains( p[i] ) )
{
children.add( p[i] );
}
}
return ( Configuration[] ) children.toArray( new
Configuration[children.size()] );
}
private boolean isLoneConfiguration( String name, Configuration list[] )
{
boolean found = false;
for( int i = 0; i < list.length; i++ )
{
if( name.equals( list[i].getName() ) )
{
if( found )
{
return false;
}
else
{
found = true;
}
}
}
return true;
}
/**
* Return an <code>Array</code> of <code>Configuration</code>
* elements containing all node children with the specified name from
* both base and parent configurations. The array
* order will reflect the order in the source config file commencing
* with the base configuration. The configuration may be merged according to the
rules for
* <code>phoenix-configuration:merge</code>
*
* @param name The name of the children to get.
* @return The child nodes with name <code>name</code>
*/
public Configuration[] getChildren( String name )
{
final Configuration[] b = m_base.getChildren( name );
final Configuration[] p = m_parent.getChildren( name );
if( b.length == 0 && p.length == 0 ) //both are zero, no need to do anything
{
return new Configuration[0];
}
else if( b.length == 0 ) // base is empty, return parent
{
return p;
}
else if( p.length == 0 ) //parent is empty, return base
{
return b;
}
else if( p.length == 1
&& b.length == 1
&& b[0].getAttributeAsBoolean( MERGE_ATTR, false ) )
{
return new Configuration[]{new MergedConfiguration( b[0], p[0] )};
}
else
{
Configuration[] result = new Configuration[b.length + p.length];
System.arraycopy( b, 0, result, 0, b.length );
System.arraycopy( p, 0, result, b.length, p.length );
return result;
}
}
/**
* Return an array of all attribute names in both base and parent.
* <p>
* <em>The order of attributes in this array can not be relied on.</em> As
* with XML, a <code>Configuration</code>'s attributes are an
* <em>unordered</em> set. If your code relies on order, eg
* <tt>conf.getAttributeNames()[0]</tt>, then it is liable to break if a
* different XML parser is used.
* </p>
*
* If an attribute named <code>phoenix-configuration:merge</code> exists in
either the
* parent or base, it will not be shown in this list.
*
* @return an array of all attribute names
*/
public String[] getAttributeNames()
{
List list = new ArrayList();
String[] names = m_base.getAttributeNames();
String[] names2 = m_parent.getAttributeNames();
for( int i = 0; i < names.length; i++ )
{
if( !( MERGE_ATTR.equals( names[i] ) || KEY_ATTR.equals( names[i] ) ) )
{
list.add( names[i] );
}
}
for( int i = 0; i < names2.length; i++ )
{
final String name = names2[i];
if( !( MERGE_ATTR.equals( name ) || KEY_ATTR.equals( name ) )
&& list.indexOf( name ) < 0 )
{
list.add( name );
}
}
return ( String[] ) list.toArray( new String[list.size()] );
}
/**
* Return the value of specified attribute. If the base configuration
* does not contain the attribute, the equivialent operation is applied to
* the parent configuration.
*
* @param paramName The name of the parameter you ask the value of.
* @return String value of attribute.
* @exception ConfigurationException If no attribute with that name exists.
*/
public String getAttribute( String paramName ) throws ConfigurationException
{
try
{
return m_base.getAttribute( paramName );
}
catch( ConfigurationException e )
{
return m_parent.getAttribute( paramName );
}
}
/**
* Return the <code>int</code> value of the specified attribute contained
* in this node or the parent.
* @param paramName The name of the parameter you ask the value of.
* @return int value of attribute
* @exception ConfigurationException If no parameter with that name exists.
* or if conversion to <code>int</code> fails.
*/
public int getAttributeAsInteger( String paramName ) throws
ConfigurationException
{
try
{
return m_base.getAttributeAsInteger( paramName );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsInteger( paramName );
}
}
/**
* Returns the value of the attribute specified by its name as a
* <code>long</code>.
*
* @param name The name of the parameter you ask the value of.
* @return long value of attribute
* @exception ConfigurationException If no parameter with that name exists.
* or if conversion to <code>long</code> fails.
*/
public long getAttributeAsLong( String name ) throws ConfigurationException
{
try
{
return m_base.getAttributeAsLong( name );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsLong( name );
}
}
/**
* Return the <code>float</code> value of the specified parameter contained
* in this node.
* @param paramName The name of the parameter you ask the value of.
* @return float value of attribute
* @exception ConfigurationException If no parameter with that name exists.
* or if conversion to <code>float</code>
fails.
*/
public float getAttributeAsFloat( String paramName ) throws
ConfigurationException
{
try
{
return m_base.getAttributeAsFloat( paramName );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsFloat( paramName );
}
}
/**
* Return the <code>boolean</code> value of the specified parameter contained
* in this node.
*
* @param paramName The name of the parameter you ask the value of.
* @return boolean value of attribute
* @exception ConfigurationException If no parameter with that name exists.
* or if conversion to <code>boolean</code>
fails.
*/
public boolean getAttributeAsBoolean( String paramName ) throws
ConfigurationException
{
try
{
return m_base.getAttributeAsBoolean( paramName );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsBoolean( paramName );
}
}
/**
* Return the <code>String</code> value of the node.
*
* @return the value of the node.
* @exception ConfigurationException May be raised by underlying
* base or parent configuration.
*/
public String getValue() throws ConfigurationException
{
try
{
return m_base.getValue();
}
catch( ConfigurationException e )
{
return m_parent.getValue();
}
}
/**
* Return the <code>int</code> value of the node.
* @return int the value as an integer
* @exception ConfigurationException If conversion to <code>int</code> fails.
*/
public int getValueAsInteger() throws ConfigurationException
{
try
{
return m_base.getValueAsInteger();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsInteger();
}
}
/**
* Return the <code>float</code> value of the node.
*
* @return the value of the node.
* @exception ConfigurationException If conversion to <code>float</code> fails.
*/
public float getValueAsFloat() throws ConfigurationException
{
try
{
return m_base.getValueAsFloat();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsFloat();
}
}
/**
* Return the <code>boolean</code> value of the node.
*
* @return the value of the node.
* @exception ConfigurationException If conversion to <code>boolean</code> fails.
*/
public boolean getValueAsBoolean() throws ConfigurationException
{
try
{
return m_base.getValueAsBoolean();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsBoolean();
}
}
/**
* Return the <code>long</code> value of the node.
*
* @return the value of the node.
* @exception ConfigurationException If conversion to <code>long</code> fails.
*/
public long getValueAsLong() throws ConfigurationException
{
try
{
return m_base.getValueAsLong();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsLong();
}
}
/**
* Returns the value of the configuration element as a <code>String</code>.
* If the configuration value is not set, the default value will be
* used.
*
* @param defaultValue The default value desired.
* @return String value of the <code>Configuration</code>, or default
* if none specified.
*/
public String getValue( String defaultValue )
{
try
{
return m_base.getValue();
}
catch( ConfigurationException e )
{
return m_parent.getValue( defaultValue );
}
}
/**
* Returns the value of the configuration element as an <code>int</code>.
* If the configuration value is not set, the default value will be
* used.
*
* @param defaultValue The default value desired.
* @return int value of the <code>Configuration</code>, or default
* if none specified.
*/
public int getValueAsInteger( int defaultValue )
{
try
{
return m_base.getValueAsInteger();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsInteger( defaultValue );
}
}
/**
* Returns the value of the configuration element as a <code>long</code>.
* If the configuration value is not set, the default value will be
* used.
*
* @param defaultValue The default value desired.
* @return long value of the <code>Configuration</code>, or default
* if none specified.
*/
public long getValueAsLong( long defaultValue )
{
try
{
return m_base.getValueAsLong();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsLong( defaultValue );
}
}
/**
* Returns the value of the configuration element as a <code>float</code>.
* If the configuration value is not set, the default value will be
* used.
*
* @param defaultValue The default value desired.
* @return float value of the <code>Configuration</code>, or default
* if none specified.
*/
public float getValueAsFloat( float defaultValue )
{
try
{
return m_base.getValueAsFloat();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsFloat( defaultValue );
}
}
/**
* Returns the value of the configuration element as a <code>boolean</code>.
* If the configuration value is not set, the default value will be
* used.
*
* @param defaultValue The default value desired.
* @return boolean value of the <code>Configuration</code>, or default
* if none specified.
*/
public boolean getValueAsBoolean( boolean defaultValue )
{
try
{
return m_base.getValueAsBoolean();
}
catch( ConfigurationException e )
{
return m_parent.getValueAsBoolean( defaultValue );
}
}
/**
* Returns the value of the attribute specified by its name as a
* <code>String</code>, or the default value if no attribute by
* that name exists or is empty.
*
* @param name The name of the attribute you ask the value of.
* @param defaultValue The default value desired.
* @return String value of attribute. It will return the default
* value if the named attribute does not exist, or if
* the value is not set.
*/
public String getAttribute( String name, String defaultValue )
{
try
{
return m_base.getAttribute( name );
}
catch( ConfigurationException e )
{
return m_parent.getAttribute( name, defaultValue );
}
}
/**
* Returns the value of the attribute specified by its name as a
* <code>int</code>, or the default value if no attribute by
* that name exists or is empty.
*
* @param name The name of the attribute you ask the value of.
* @param defaultValue The default value desired.
* @return int value of attribute. It will return the default
* value if the named attribute does not exist, or if
* the value is not set.
*/
public int getAttributeAsInteger( String name, int defaultValue )
{
try
{
return m_base.getAttributeAsInteger( name );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsInteger( name, defaultValue );
}
}
/**
* Returns the value of the attribute specified by its name as a
* <code>long</code>, or the default value if no attribute by
* that name exists or is empty.
*
* @param name The name of the attribute you ask the value of.
* @param defaultValue The default value desired.
* @return long value of attribute. It will return the default
* value if the named attribute does not exist, or if
* the value is not set.
*/
public long getAttributeAsLong( String name, long defaultValue )
{
try
{
return m_base.getAttributeAsLong( name );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsLong( name, defaultValue );
}
}
/**
* Returns the value of the attribute specified by its name as a
* <code>float</code>, or the default value if no attribute by
* that name exists or is empty.
*
* @param name The name of the attribute you ask the value of.
* @param defaultValue The default value desired.
* @return float value of attribute. It will return the default
* value if the named attribute does not exist, or if
* the value is not set.
*/
public float getAttributeAsFloat( String name, float defaultValue )
{
try
{
return m_base.getAttributeAsFloat( name );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsFloat( name, defaultValue );
}
}
/**
* Returns the value of the attribute specified by its name as a
* <code>boolean</code>, or the default value if no attribute by
* that name exists or is empty.
*
* @param name The name of the attribute you ask the value of.
* @param defaultValue The default value desired.
* @return boolean value of attribute. It will return the default
* value if the named attribute does not exist, or if
* the value is not set.
*/
public boolean getAttributeAsBoolean( String name, boolean defaultValue )
{
try
{
return m_base.getAttributeAsBoolean( name );
}
catch( ConfigurationException e )
{
return m_parent.getAttributeAsBoolean( name, defaultValue );
}
}
}
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