Examples of org.apache.excalibur.store.Store

org.apache.excalibur.store.Store
A Store is an object managing arbitrary data. It holds data stored under a given key persistently. So if you put something in a store you can be sure that the next time (even if the application restarted) your data is in the store (of course unless noone else did remove it). In some cases (like for example a cache) the data needs not to be persistent. Therefore with the two role TRANSIENT_STORE and PERSISTENT_STORE you get a store with exactly that behaviour. @author Avalon Development Team @version CVS $Id: Store.java,v 1.5 2004/02/28 11:47:34 cziegeler Exp $

                }
                setIndex(0);
            }


            // Delete proportionate elements out of the store as configured.
            Store store = (Store)getStoreList().get(getIndex());
            int limit = calcToFree(store);
            if (getLogger().isDebugEnabled()) {
                getLogger().debug("Freeing " + limit + " items from store #" + getIndex());
            }


            for (int i = 0; i < limit; i++) {
                try {
                    store.free();
                } catch (OutOfMemoryError e) {
                    getLogger().error("OutOfMemoryError in freeMemory()");
                }
            }
        } catch (Exception e) {

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        try {
            if (configuration != null && !this.getIsAdminProfile(profileID)) {
                final String storePrefix = (String)configuration.get(PortalConstants.CONF_PROFILE_CACHE);
                if (storePrefix != null) {
                    final String key = profileID.substring(1);
                    final Store store = this.getProfileStore();
                    if (store.containsKey(key)) {
                        result = (Map)store.get(key);
                    }
                }
            }
        } catch (Exception local) {
            // local exceptions are ignored

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        if (configuration != null
            && type != null
            && !type.equals(PortalManagerImpl.BUILDTYPE_VALUE_ID)) {
            String storePrefix = (String)configuration.get(PortalConstants.CONF_PROFILE_CACHE);
            if (storePrefix != null) {
                Store store = this.getProfileStore();
                Enumeration keys = store.keys();
                String   currentKey;
                String  deleteGlobal = null;
                String  deleteRole = null;
                String  deleteUser = null;


                if (type.equals(PortalManagerImpl.BUILDTYPE_VALUE_BASIC) ||
                    type.equals(PortalManagerImpl.BUILDTYPE_VALUE_GLOBAL)) {
                    if (type.equals(PortalManagerImpl.BUILDTYPE_VALUE_BASIC)) {
                        deleteGlobal = this.getProfileID(PortalManagerImpl.BUILDTYPE_VALUE_GLOBAL, null, null, false).substring(1);
                    }
                    deleteRole = this.getProfileID(PortalManagerImpl.BUILDTYPE_VALUE_GLOBAL, null, null, false);
                    deleteRole = deleteRole.substring(1, deleteRole.lastIndexOf(':')+1) + PortalManagerImpl.BUILDTYPE_VALUE_ROLE;
                    deleteUser = this.getProfileID(PortalManagerImpl.BUILDTYPE_VALUE_GLOBAL, null, null, false);
                    deleteUser = deleteUser.substring(1, deleteUser.lastIndexOf(':')+1) + PortalManagerImpl.BUILDTYPE_VALUE_ID;
                } else { // role
                    deleteGlobal = this.getProfileID(PortalManagerImpl.BUILDTYPE_VALUE_ROLE, role, null, false).substring(1);
                    deleteUser = this.getProfileID(PortalManagerImpl.BUILDTYPE_VALUE_ID, role, "a", false);
                    deleteUser = deleteUser.substring(1, deleteUser.length()-1);
                }


                while (keys.hasMoreElements()) {
                    Object k = keys.nextElement();
                    if ( k instanceof String ) {
                        currentKey = (String)k;
                        if (deleteGlobal != null && currentKey.equals(deleteGlobal)) {
                            store.remove(currentKey);
                        } else if (deleteRole != null && currentKey.startsWith(deleteRole)) {
                            store.remove(currentKey);
                        } else if (deleteUser != null && currentKey.startsWith(deleteUser)) {
                            store.remove(currentKey);
                        }
                    }
                }
            }
        } else if (configuration != null && type == null) {
            // clean whole cache
            String storePrefix = (String)configuration.get(PortalConstants.CONF_PROFILE_CACHE);
            if (storePrefix != null) {
                Store store = this.getProfileStore();
                Enumeration keys = store.keys();
                String currentKey;
                String delete;


                delete = this.getProfileID(PortalManagerImpl.BUILDTYPE_VALUE_GLOBAL, null, null, false);
                delete = delete.substring(1, delete.lastIndexOf(':') + 1);
                while (keys.hasMoreElements()) {
                    Object k = keys.nextElement();
                    if ( k instanceof String ) {
                        currentKey = (String)k;
                        if (currentKey.startsWith(delete)) {
                            store.remove(currentKey);
                        }
                    }
                }
            }
        }

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                            (String)entry.getKey()
                        );
                    }
                    this.serializer.endDocument();


                    Store store = null;
                    String id = Long.toHexString((hashCode()^HashUtil.hash(requestURI)) + fragmentID);
                    try {
                        store = (Store) this.manager.lookup(Store.TRANSIENT_STORE);
                        store.store(id, this.serializer.getSAXFragment());
                    } catch (ServiceException se) {
                        throw new SAXException("Could not lookup for transient store.", se);
                    } catch (IOException ioe) {
                        throw new SAXException("Could not store fragment.", ioe);
                    } finally {

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        // Obtain the fragmentID  (which is simply the filename portion of the source)
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Retrieving fragment " + source + ".");
        }


        Store store = null;
        XMLDeserializer deserializer = null;
        Object fragment = null;
        try {
            store = (Store) this.manager.lookup(Store.TRANSIENT_STORE);
            fragment = store.get(source);
            if (fragment == null) {
                throw new ResourceNotFoundException("Could not find fragment " + source + " in store");
            }


            deserializer = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);

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  public void setup(SourceResolver resolver, Map objectmodel, String src, Parameters parameters)
    throws ProcessingException, SAXException, IOException
  {
    this.resolver = resolver;


    Store store = null;


    try
    {
      this.lexicon = src;


      this.lexiconSource = resolver.resolveURI(this.lexicon);


      // Retrieve the lexical automaton from the transient store
      store = (Store)this.manager.lookup(Store.TRANSIENT_STORE);


      LexicalAutomatonEntry entry = (LexicalAutomatonEntry)store.get(this.lexiconSource.getURI());


      // If the lexicon has changed, rebuild the lexical automaton
      if ((entry==null) || (entry.getValidity()==null) ||
          (entry.getValidity().isValid(this.lexiconSource.getValidity())<=0))
      {
        this.logger.info("(Re)building the automaton from '"+this.lexiconSource.getURI()+"'");


        if (this.lexiconSource.getInputStream()==null)
          throw new ProcessingException("Source '"+this.lexiconSource.getURI()+"' not found");


        LexiconFactory factory = new LexiconFactory();
        SourceUtil.toSAX(this.manager, this.lexiconSource, null, factory);


        Lexicon lexicon = factory.getLexicon();


        LexicalAutomatonBuilder builder =
          new LexicalAutomatonBuilder(lexicon/*, new AvalonLogger(this.logger)*/);


        this.automaton = builder.getLexicalAutomaton();


        this.logger.info("Store automaton into store for '"+this.lexiconSource.getURI()+"'");
        store.store(this.lexiconSource.getURI(),
                    new LexicalAutomatonEntry(this.automaton, this.lexiconSource.getValidity()));
      }
      else
      {
        this.logger.info("Getting automaton from store for '"+this.lexiconSource.getURI()+"'");

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                    Map objectModel,
                    String src,
                    Parameters par
    ) throws Exception {
        if ( this.manager.hasService( Store.PERSISTENT_STORE) ) {
            final Store store_persistent = (Store)this.manager.lookup(Store.ROLE);


            try {
                store_persistent.clear();
                return EMPTY_MAP;
            } catch (Exception ex) {
                getLogger().debug("Exception while trying to Clearing the Store", ex);
                return null;
            } finally {

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                            (String)entry.getKey()
                        );
                    }
                    this.serializer.endDocument();


                    Store store = null;
                    String id = Long.toHexString((hashCode()^HashUtil.hash(requestURI)) + fragmentID);
                    try {
                        store = (Store) this.manager.lookup(Store.TRANSIENT_STORE);
                        store.store(id, this.serializer.getSAXFragment());
                    } catch (ServiceException se) {
                        throw new SAXException("Could not lookup for transient store.", se);
                    } catch (IOException ioe) {
                        throw new SAXException("Could not store fragment.", ioe);
                    } finally {

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        // Obtain the fragmentID  (which is simply the filename portion of the source)
        if (getLogger().isDebugEnabled()) {
            getLogger().debug("Retrieving fragment " + source + ".");
        }


        Store store = null;
        XMLDeserializer deserializer = null;
        Object fragment = null;
        try {
            store = (Store) this.manager.lookup(Store.TRANSIENT_STORE);
            fragment = store.get(source);
            if (fragment == null) {
                throw new ResourceNotFoundException("Could not find fragment " + source + " in store");
            }


            deserializer = (XMLDeserializer) this.manager.lookup(XMLDeserializer.ROLE);

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  public void setup(SourceResolver resolver, Map objectmodel, String src, Parameters parameters)
    throws ProcessingException, SAXException, IOException
  {
    this.resolver = resolver;


    Store store = null;


    try
    {
      this.grammar = src;


      this.grammarSource = resolver.resolveURI(this.grammar);


      // Retrieve the parser automaton from the transient store
      store = (Store)this.manager.lookup(Store.TRANSIENT_STORE);


      GrammarEntry entry = (GrammarEntry)store.get(this.grammarSource.getURI());


      // If the parser automaton has changed, rebuild the parser automaton
      if ((entry==null) || (entry.getValidity()==null) ||
          ((entry.getValidity().isValid(this.grammarSource.getValidity()))<=0))
      {
        this.logger.info("(Re)building the grammar from '"+this.grammarSource.getURI()+"'");


        if (this.grammarSource.getInputStream()==null)
          throw new ProcessingException("Source '"+this.grammarSource.getURI()+"' not found");


        Mapping mapping = new Mapping();


        mapping.loadMapping(new InputSource(ExtendedGrammar.class.getResource("mapping.xml")
                                                                 .openStream()));


        Unmarshaller unmarshaller = new Unmarshaller(ExtendedGrammar.class);
        unmarshaller.setMapping(mapping);


        UnmarshalHandler unmarshalHandler = unmarshaller.createHandler();
        SourceUtil.toSAX(this.manager, this.grammarSource, null,
                         Unmarshaller.getContentHandler(unmarshalHandler));


        ExtendedGrammar grammar = (ExtendedGrammar)unmarshalHandler.getObject();


        if (grammar==null)
          throw new ProcessingException("Error while reading the grammar from "+src);


        setExtendedGrammar(grammar);


        this.logger.info("Store grammar into store for '"+this.grammarSource.getURI()+"'");
        store.store(this.grammarSource.getURI(),
                    new GrammarEntry(grammar, this.grammarSource.getValidity()));
      }
      else
      {
        this.logger.info("Getting grammar from store for '"+this.grammarSource.getURI()+"'");

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Related Classes of org.apache.excalibur.store.Store

org.apache.cocoon.acting.ClearPersistentStoreAction

org.apache.cocoon.components.store.impl.StoreJanitorImpl

org.apache.cocoon.generation.FragmentExtractorGenerator

org.apache.cocoon.generation.StatusGenerator

org.apache.cocoon.storejanitor.StoreJanitorImpl

org.apache.cocoon.transformation.ExtendedParserTransformer

org.apache.cocoon.transformation.FragmentExtractorTransformer

org.apache.cocoon.transformation.LexicalTransformer

org.apache.cocoon.transformation.ParserTransformer

org.apache.cocoon.transformation.PatternTransformer

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