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ALF-17897: Should be able to Override or Augment Metadata Extractor Mappings via Global Properties

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- Changed AbstractMappingMetadataExtracter to implement ApplicationContextAware
   - Added AbstractMappingMetadataExtracter.getRelevantGlobalProperties responsible for fetching the global properties relevant to the bean and component ('extract' or 'embed')
   - Separated AbstractMappingMetadataExtracter readMappingProperties and readEmbedMappingProperties into separate methods with arguments for entry set or Properties
   - Added AbstractMappingMetadataExtracter readGlobalExtractMappingProperties and readGlobalEmbedMappingProperties which get the relevant property entries from getRelevantGlobalProperties
   - Changed AbstractMappingMetadataExtracter init to call readGlobalExtractMappingProperties and readGlobalEmbedMappingProperties
   - Added testPropertyMappingGlobalOverride to MappingMetadataExtracterTest

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@47008 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Ray Gauss
2013-02-22 18:57:17 +00:00
parent 6b4cd73f22
commit 5921570ac1
2 changed files with 180 additions and 5 deletions
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157
source/java/org/alfresco/repo/content/metadata/AbstractMappingMetadataExtracter.java
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@@ -33,6 +33,7 @@ import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;
import java.util.StringTokenizer;
@@ -55,6 +56,8 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.xmlbeans.impl.xb.xsdschema.All;
import org.springframework.beans.factory.BeanNameAware;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.extensions.surf.util.ISO8601DateFormat;
/**
@@ -97,10 +100,13 @@ import org.springframework.extensions.surf.util.ISO8601DateFormat;
* @author Jesper Steen Møller
* @author Derek Hulley
*/
abstract public class AbstractMappingMetadataExtracter implements MetadataExtracter, MetadataEmbedder, BeanNameAware
abstract public class AbstractMappingMetadataExtracter implements MetadataExtracter, MetadataEmbedder, BeanNameAware, ApplicationContextAware
{
public static final String NAMESPACE_PROPERTY_PREFIX = "namespace.prefix.";
private static final String ERR_TYPE_CONVERSION = "metadata.extraction.err.type_conversion";
public static final String PROPERTY_PREFIX_METADATA = "metadata.";
public static final String PROPERTY_COMPONENT_EXTRACT = ".extract.";
public static final String PROPERTY_COMPONENT_EMBED = ".extract.";
protected static Log logger = LogFactory.getLog(AbstractMappingMetadataExtracter.class);
@@ -120,6 +126,7 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
private boolean inheritDefaultEmbedMapping;
private boolean enableStringTagging;
private String beanName;
private ApplicationContext applicationContext;
private Properties properties;
/**
@@ -390,6 +397,11 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
return beanName;
}
public void setApplicationContext(ApplicationContext applicationContext)
{
this.applicationContext = applicationContext;
}
/**
* The Alfresco global properties.
*/
@@ -601,16 +613,92 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
}
}
/**
* A utility method to convert global properties to the Map form for the given
* propertyComponent.
* <p>
* Mappings can be specified using the same method defined for
* normal mapping properties files but with a prefix of
* <code>metadata.extracter</code>, the extracter bean name, and the propertyComponent.
* For example:
*
* metadata.extracter.TikaAuto.extract.namespace.prefix.my=http://DummyMappingMetadataExtracter
* metadata.extracter.TikaAuto.extract.namespace.prefix.cm=http://www.alfresco.org/model/content/1.0
* metadata.extracter.TikaAuto.extract.dc\:description=cm:description, my:customDescription
*
*/
private Map<Object, Object> getRelevantGlobalProperties(String propertyComponent)
{
if (applicationContext == null)
{
logger.info("ApplicationContext not set");
return null;
}
Properties globalProperties = (Properties) applicationContext.getBean("global-properties");
if (globalProperties == null)
{
logger.info("Could not get global-properties");
return null;
}
Map<Object, Object> relevantGlobalPropertiesMap =
new HashMap<Object, Object>();
String propertyPrefix = PROPERTY_PREFIX_METADATA + beanName + propertyComponent;
for (Entry<Object, Object> globalEntry : globalProperties.entrySet())
{
if (((String) globalEntry.getKey()).startsWith(propertyPrefix))
{
relevantGlobalPropertiesMap.put(
((String) globalEntry.getKey()).replace(propertyPrefix, ""),
globalEntry.getValue());
}
}
return relevantGlobalPropertiesMap;
}
/**
* A utility method to convert global properties to the Map form for the given
* propertyComponent.
* <p>
* Mappings can be specified using the same method defined for
* normal mapping properties files but with a prefix of
* <code>metadata.extracter</code>, the extracter bean name, and the extract component.
* For example:
*
* metadata.extracter.TikaAuto.extract.namespace.prefix.my=http://DummyMappingMetadataExtracter
* metadata.extracter.TikaAuto.extract.namespace.prefix.cm=http://www.alfresco.org/model/content/1.0
* metadata.extracter.TikaAuto.extract.dc\:description=cm:description, my:customDescription
*
*/
protected Map<String, Set<QName>> readGlobalExtractMappingProperties()
{
Map<Object, Object> relevantGlobalPropertiesMap = getRelevantGlobalProperties(PROPERTY_COMPONENT_EXTRACT);
if (relevantGlobalPropertiesMap == null)
{
return null;
}
return readMappingProperties(relevantGlobalPropertiesMap.entrySet());
}
/**
* A utility method to convert mapping properties to the Map form.
*
* @see #setMappingProperties(Properties)
*/
protected Map<String, Set<QName>> readMappingProperties(Properties mappingProperties)
{
return readMappingProperties(mappingProperties.entrySet());
}
/**
* A utility method to convert mapping properties entries to the Map form.
*
* @see #setMappingProperties(Properties)
*/
private Map<String, Set<QName>> readMappingProperties(Set<Entry<Object, Object>> mappingPropertiesEntries)
{
Map<String, String> namespacesByPrefix = new HashMap<String, String>(5);
// Get the namespaces
for (Map.Entry<Object, Object> entry : mappingProperties.entrySet())
for (Map.Entry<Object, Object> entry : mappingPropertiesEntries)
{
String propertyName = (String) entry.getKey();
if (propertyName.startsWith(NAMESPACE_PROPERTY_PREFIX))
@@ -622,7 +710,7 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
}
// Create the mapping
Map<String, Set<QName>> convertedMapping = new HashMap<String, Set<QName>>(17);
for (Map.Entry<Object, Object> entry : mappingProperties.entrySet())
for (Map.Entry<Object, Object> entry : mappingPropertiesEntries)
{
String documentProperty = (String) entry.getKey();
String qnamesStr = (String) entry.getValue();
@@ -723,6 +811,32 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
}
}
}
/**
* A utility method to convert global mapping properties to the Map form.
* <p>
* Different from readGlobalExtractMappingProperties in that keys are the Alfresco QNames
* and values are file metadata properties.
* <p>
* Mappings can be specified using the same method defined for
* normal embed mapping properties files but with a prefix of
* <code>metadata.extracter</code>, the extracter bean name, and the embed component.
* For example:
*
* metadata.extracter.TikaAuto.embed.namespace.prefix.cm=http://www.alfresco.org/model/content/1.0
* metadata.extracter.TikaAuto.embed.cm\:description=description
*
* @see #setMappingProperties(Properties)
*/
protected Map<QName, Set<String>> readGlobalEmbedMappingProperties()
{
Map<Object, Object> relevantGlobalPropertiesMap = getRelevantGlobalProperties(PROPERTY_COMPONENT_EMBED);
if (relevantGlobalPropertiesMap == null)
{
return null;
}
return readEmbedMappingProperties(relevantGlobalPropertiesMap.entrySet());
}
/**
* A utility method to convert mapping properties to the Map form.
@@ -733,10 +847,23 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
* @see #setMappingProperties(Properties)
*/
protected Map<QName, Set<String>> readEmbedMappingProperties(Properties mappingProperties)
{
return readEmbedMappingProperties(mappingProperties.entrySet());
}
/**
* A utility method to convert mapping properties entries to the Map form.
* <p>
* Different from readMappingProperties in that keys are the Alfresco QNames
* and values are file metadata properties.
*
* @see #setMappingProperties(Properties)
*/
private Map<QName, Set<String>> readEmbedMappingProperties(Set<Entry<Object, Object>> mappingPropertiesEntries)
{
Map<String, String> namespacesByPrefix = new HashMap<String, String>(5);
// Get the namespaces
for (Map.Entry<Object, Object> entry : mappingProperties.entrySet())
for (Map.Entry<Object, Object> entry : mappingPropertiesEntries)
{
String propertyName = (String) entry.getKey();
if (propertyName.startsWith(NAMESPACE_PROPERTY_PREFIX))
@@ -748,7 +875,7 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
}
// Create the mapping
Map<QName, Set<String>> convertedMapping = new HashMap<QName, Set<String>>(17);
for (Map.Entry<Object, Object> entry : mappingProperties.entrySet())
for (Map.Entry<Object, Object> entry : mappingPropertiesEntries)
{
String modelProperty = (String) entry.getKey();
String metadataKeysString = (String) entry.getValue();
@@ -855,6 +982,16 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
}
}
// Override with any extract mappings specified in global properties
Map<String, Set<QName>> globalExtractMapping = readGlobalExtractMappingProperties();
if (globalExtractMapping != null && globalExtractMapping.size() > 0)
{
for (String documentKey : globalExtractMapping.keySet())
{
mapping.put(documentKey, globalExtractMapping.get(documentKey));
}
}
// The configured mappings are empty, but there were default mappings
if (mapping.size() == 0 && defaultMapping.size() > 0)
{
@@ -886,6 +1023,16 @@ abstract public class AbstractMappingMetadataExtracter implements MetadataExtrac
metadataKeys.addAll(defaultMetadataKeys);
}
}
// Override with any embed mappings specified in global properties
Map<QName, Set<String>> globalEmbedMapping = readGlobalEmbedMappingProperties();
if (globalEmbedMapping != null && globalEmbedMapping.size() > 0)
{
for (QName modelProperty : globalEmbedMapping.keySet())
{
embedMapping.put(modelProperty, globalEmbedMapping.get(modelProperty));
}
}
// Done
initialized = true;