Examples with PersistenceException gate.persist.PersistenceException used on opensource projects

Example 6 with PersistenceException

use of gate.persist.PersistenceException in project gate-core by GateNLP.

the class PersistenceManager method getPersistentRepresentation.

/**
 * Recursively traverses the provided object and replaces it and all
 * its contents with the appropriate persistent equivalent classes.
 *
 * @param target the object to be analysed and translated into a
 *          persistent equivalent.
 * @return the persistent equivalent value for the provided target
 */
public static Serializable getPersistentRepresentation(Object target) throws PersistenceException {
    if (target == null)
        return null;
    // first check we don't have it already
    Persistence res = existingPersistentReplacements.get().getFirst().get(new ObjectHolder(target));
    if (res != null)
        return res;
    Class<? extends Object> type = target.getClass();
    Class<?> newType = getMostSpecificPersistentType(type);
    if (newType == null) {
        // no special handler
        if (target instanceof Serializable)
            return (Serializable) target;
        else
            throw new PersistenceException("Could not find a serialisable replacement for " + type);
    }
    // we have a new type; create the new object, populate and return it
    try {
        res = (Persistence) newType.newInstance();
    } catch (Exception e) {
        throw new PersistenceException(e);
    }
    if (target instanceof NameBearer) {
        StatusListener sListener = (StatusListener) Gate.getListeners().get("gate.event.StatusListener");
        if (sListener != null) {
            sListener.statusChanged("Storing " + ((NameBearer) target).getName());
        }
    }
    res.extractDataFromSource(target);
    existingPersistentReplacements.get().getFirst().put(new ObjectHolder(target), res);
    return res;
}

Example 7 with PersistenceException

use of gate.persist.PersistenceException in project gate-core by GateNLP.

the class ResourcePersistence method extractDataFromSource.

@Override
public void extractDataFromSource(Object source) throws PersistenceException {
    if (!(source instanceof Resource)) {
        throw new UnsupportedOperationException(getClass().getName() + " can only be used for " + Resource.class.getName() + " objects!\n" + source.getClass().getName() + " is not a " + Resource.class.getName());
    }
    Resource res = (Resource) source;
    resourceType = res.getClass().getName();
    resourceName = ((NameBearer) res).getName();
    ResourceData rData = Gate.getCreoleRegister().get(resourceType);
    if (rData == null)
        throw new PersistenceException("Could not find CREOLE data for " + resourceType);
    ParameterList params = rData.getParameterList();
    try {
        // get the values for the init time parameters
        initParams = Factory.newFeatureMap();
        // this is a list of lists
        Iterator<List<Parameter>> parDisjIter = params.getInitimeParameters().iterator();
        while (parDisjIter.hasNext()) {
            Iterator<Parameter> parIter = parDisjIter.next().iterator();
            while (parIter.hasNext()) {
                Parameter parameter = parIter.next();
                String parName = parameter.getName();
                Object parValue = res.getParameterValue(parName);
                if (storeParameterValue(parValue, parameter.getDefaultValue())) {
                    ((FeatureMap) initParams).put(parName, parValue);
                }
            }
        }
        initParams = PersistenceManager.getPersistentRepresentation(initParams);
        // get the features
        if (res.getFeatures() != null) {
            features = Factory.newFeatureMap();
            ((FeatureMap) features).putAll(res.getFeatures());
            features = PersistenceManager.getPersistentRepresentation(features);
        }
    } catch (ResourceInstantiationException | ParameterException rie) {
        throw new PersistenceException(rie);
    }
}

Example 8 with PersistenceException

use of gate.persist.PersistenceException in project gate-core by GateNLP.

the class SerialCorpusImpl method unloadDocument.

/**
 * Unloads a document from memory.
 *
 * @param index the index of the document to be unloaded.
 * @param sync should the document be sync'ed (i.e. saved) before
 *          unloading.
 */
public void unloadDocument(int index, boolean sync) {
    // if a persistent doc is not loaded, there's nothing we need to do
    if ((!isDocumentLoaded(index)) && isPersistentDocument(index))
        return;
    // any more
    if (sync) {
        Document doc = documents.get(index);
        try {
            // first
            if (doc.getLRPersistenceId() == null) {
                doc = (Document) this.getDataStore().adopt(doc);
                this.getDataStore().sync(doc);
                this.setDocumentPersistentID(index, doc.getLRPersistenceId());
            } else
                // if it is adopted, just sync it
                this.getDataStore().sync(doc);
        } catch (PersistenceException ex) {
            throw new GateRuntimeException("Error unloading document from corpus" + "because document sync failed: " + ex.getMessage(), ex);
        }
    }
    // 3. remove the document from the memory
    // do this, only if the saving has succeeded
    documents.set(index, null);
}

Example 9 with PersistenceException

use of gate.persist.PersistenceException in project gate-core by GateNLP.

the class CreoleProxy method instantiateDataStore.

// createDataStore()
/**
 * Instantiate a DataStore (not open or created).
 */
protected static DataStore instantiateDataStore(String dataStoreClassName, String storageUrl) throws PersistenceException {
    DataStore godfreyTheDataStore = null;
    try {
        godfreyTheDataStore = (DataStore) Gate.getClassLoader().loadClass(dataStoreClassName).newInstance();
    } catch (Exception e) {
        throw new PersistenceException("Couldn't create DS class: " + e);
    }
    godfreyTheDataStore.setStorageUrl(storageUrl);
    return godfreyTheDataStore;
}

Example 10 with PersistenceException

use of gate.persist.PersistenceException in project gate-core by GateNLP.

the class CreoleProxy method createResource.

/**
 * Create an instance of a resource, and return it. Callers of this
 * method are responsible for querying the resource's parameter lists,
 * putting together a set that is complete apart from runtime
 * parameters, and passing a feature map containing these parameter
 * settings.
 *
 * In the case of ProcessingResources they will have their runtime
 * parameters initialised to their default values.
 *
 * @param resourceClassName the name of the class implementing the
 *          resource.
 * @param parameterValues the feature map containing intialisation
 *          time parameterValues for the resource.
 * @param features the features for the new resource or null to not
 *          assign any (new) features.
 * @param resourceName the name to be given to the resource or null to
 *          assign a default name.
 * @return an instantiated resource.
 */
public static Resource createResource(String resourceClassName, FeatureMap parameterValues, FeatureMap features, String resourceName) throws ResourceInstantiationException {
    // get the resource metadata
    ResourceData resData = Gate.getCreoleRegister().get(resourceClassName);
    if (resData == null) {
        Set<Plugin> plugins = Gate.getPlugins(resourceClassName);
        StringBuilder msg = new StringBuilder();
        msg.append("Couldn't get resource data for ").append(resourceClassName).append(".\n\n");
        if (plugins.isEmpty()) {
            msg.append("You may need first to load the plugin that contains your resource.\n");
            msg.append("For example, to create a gate.creole.tokeniser.DefaultTokeniser\n");
            msg.append("you need first to load the ANNIE plugin.\n\n");
        } else if (plugins.size() == 1) {
            msg.append(resourceClassName).append(" can be found in the ").append(plugins.iterator().next().getName()).append(" plugin\n\n");
        } else {
            msg.append(resourceClassName).append(" can be found in the following plugins\n   ");
            for (Plugin dInfo : plugins) {
                msg.append(dInfo.getName()).append(", ");
            }
            msg.setLength(msg.length() - 2);
            msg.append("\n\n");
        }
        msg.append("Go to the menu File->Manage CREOLE plugins or use the method\n");
        msg.append("Gate.getCreoleRegister().registerDirectories(pluginDirectoryURL).");
        throw new ResourceInstantiationException(msg.toString());
    }
    // get the default implementation class
    Class<? extends Resource> resClass = null;
    try {
        resClass = resData.getResourceClass();
    } catch (ClassNotFoundException e) {
        throw new ResourceInstantiationException("Couldn't get resource class from the resource data:" + Strings.getNl() + e);
    }
    // create a pointer for the resource
    Resource res = null;
    // if the object is an LR and it should come from a DS then create
    // that way
    DataStore dataStore;
    if (LanguageResource.class.isAssignableFrom(resClass) && ((dataStore = (DataStore) parameterValues.get(DataStore.DATASTORE_FEATURE_NAME)) != null)) {
        // ask the datastore to create our object
        if (dataStore instanceof SerialDataStore) {
            // serialisability
            if (!Serializable.class.isAssignableFrom(resClass))
                throw new ResourceInstantiationException("Resource cannot be (de-)serialized: " + resClass.getName());
        }
        // get the datastore instance id and retrieve the resource
        Object instanceId = parameterValues.get(DataStore.LR_ID_FEATURE_NAME);
        if (instanceId == null)
            throw new ResourceInstantiationException("No instance id for " + resClass);
        try {
            res = dataStore.getLr(resClass.getName(), instanceId);
        } catch (PersistenceException pe) {
            throw new ResourceInstantiationException("Bad read from DB: " + pe);
        } catch (SecurityException se) {
            throw new ResourceInstantiationException("Insufficient permissions: " + se);
        }
        resData.addInstantiation(res);
        if (features != null) {
            if (res.getFeatures() == null) {
                res.setFeatures(newFeatureMap());
            }
            res.getFeatures().putAll(features);
        }
        // set the name
        if (res.getName() == null) {
            res.setName(resourceName == null ? resData.getName() + "_" + Gate.genSym() : resourceName);
        }
        // fire the event
        creoleProxy.fireResourceLoaded(new CreoleEvent(res, CreoleEvent.RESOURCE_LOADED));
        return res;
    }
    // create an object using the resource's default constructor
    try {
        if (DEBUG)
            Out.prln("Creating resource " + resClass.getName());
        res = resClass.newInstance();
    } catch (IllegalAccessException e) {
        throw new ResourceInstantiationException("Couldn't create resource instance, access denied: " + e);
    } catch (InstantiationException e) {
        throw new ResourceInstantiationException("Couldn't create resource instance due to newInstance() failure: " + e);
    }
    if (LanguageResource.class.isAssignableFrom(resClass)) {
        // type-specific stuff for LRs
        if (DEBUG)
            Out.prln(resClass.getName() + " is a LR");
    } else if (ProcessingResource.class.isAssignableFrom(resClass)) {
        // type-specific stuff for PRs
        if (DEBUG)
            Out.prln(resClass.getName() + " is a PR");
        // set the runtime parameters to their defaults
        try {
            FeatureMap parameters = newFeatureMap();
            parameters.putAll(resData.getParameterList().getRuntimeDefaults());
            res.setParameterValues(parameters);
        } catch (ParameterException pe) {
            throw new ResourceInstantiationException("Could not set the runtime parameters " + "to their default values for: " + res.getClass().getName() + " :\n" + pe.toString());
        }
    // type-specific stuff for VRs
    } else if (VisualResource.class.isAssignableFrom(resClass)) {
        if (DEBUG)
            Out.prln(resClass.getName() + " is a VR");
    } else if (Controller.class.isAssignableFrom(resClass)) {
        // type specific stuff for Controllers
        if (DEBUG)
            Out.prln(resClass.getName() + " is a Controller");
    }
    // set the parameterValues of the resource
    try {
        FeatureMap parameters = newFeatureMap();
        // put the defaults
        parameters.putAll(resData.getParameterList().getInitimeDefaults());
        // overwrite the defaults with the user provided values
        parameters.putAll(parameterValues);
        res.setParameterValues(parameters);
    } catch (ParameterException pe) {
        throw new ResourceInstantiationException("Could not set the init parameters for: " + res.getClass().getName() + " :\n" + pe.toString());
    }
    // suitable name if the resource doesn't already have one
    if (resourceName != null && resourceName.trim().length() > 0) {
        res.setName(resourceName);
    } else if (res.getName() == null) {
        // -> let's try and find a reasonable one
        try {
            // first try to get a filename from the various parameters
            URL sourceUrl = null;
            if (res instanceof SimpleDocument) {
                sourceUrl = ((SimpleDocument) res).getSourceUrl();
            } else if (res instanceof AnnotationSchema) {
                sourceUrl = ((AnnotationSchema) res).getXmlFileUrl();
            } else if (res.getClass().getName().startsWith("gate.creole.ontology.owlim.")) {
                // get the name for the OWLIM2 ontology LR
                java.lang.reflect.Method m = resClass.getMethod("getRdfXmlURL");
                sourceUrl = (java.net.URL) m.invoke(res);
                if (sourceUrl == null) {
                    m = resClass.getMethod("getN3URL");
                    sourceUrl = (java.net.URL) m.invoke(res);
                }
                if (sourceUrl == null) {
                    m = resClass.getMethod("getNtriplesURL");
                    sourceUrl = (java.net.URL) m.invoke(res);
                }
                if (sourceUrl == null) {
                    m = resClass.getMethod("getTurtleURL");
                    sourceUrl = (java.net.URL) m.invoke(res);
                }
            } else if (res.getClass().getName().startsWith("gate.creole.ontology.impl.")) {
                java.lang.reflect.Method m = resClass.getMethod("getSourceURL");
                sourceUrl = (java.net.URL) m.invoke(res);
            }
            if (sourceUrl != null) {
                URI sourceURI = sourceUrl.toURI();
                resourceName = sourceURI.getPath();
                if (resourceName == null || resourceName.length() == 0 || resourceName.equals("/")) {
                    // this URI has no path -> use the whole string
                    resourceName = sourceURI.toString();
                } else {
                    // there is a significant path value -> get the last element
                    resourceName = resourceName.trim();
                    int lastSlash = resourceName.lastIndexOf('/');
                    if (lastSlash >= 0) {
                        String subStr = resourceName.substring(lastSlash + 1);
                        if (subStr.trim().length() > 0)
                            resourceName = subStr;
                    }
                }
            }
        } catch (RuntimeException t) {
        // even runtime exceptions are safe to ignore at this point
        } catch (Exception t) {
        // there were problems while trying to guess a name
        // we can safely ignore them
        } finally {
            // make sure there is a name provided, whatever happened
            if (resourceName == null || resourceName.trim().length() == 0) {
                resourceName = resData.getName();
            }
        }
        resourceName += "_" + Gate.genSym();
        res.setName(resourceName);
    }
    // else if(res.getName() == null)
    // if res.getName() != null, leave it as it is
    Map<String, EventListener> listeners = new HashMap<String, EventListener>(gate.Gate.getListeners());
    // set the listeners if any
    if (!listeners.isEmpty()) {
        try {
            if (DEBUG)
                Out.prln("Setting the listeners for  " + res.toString());
            AbstractResource.setResourceListeners(res, listeners);
        } catch (Exception e) {
            if (DEBUG)
                Out.prln("Failed to set listeners for " + res.toString());
            throw new ResourceInstantiationException("Parameterisation failure" + e);
        }
    }
    // set them to the features of the resource data
    if (res.getFeatures() == null || res.getFeatures().isEmpty()) {
        FeatureMap fm = newFeatureMap();
        fm.putAll(resData.getFeatures());
        res.setFeatures(fm);
    }
    // add the features specified by the user
    if (features != null)
        res.getFeatures().putAll(features);
    // initialise the resource
    if (DEBUG)
        Out.prln("Initialising resource " + res.toString());
    res = res.init();
    // remove the listeners if any
    if (!listeners.isEmpty()) {
        try {
            if (DEBUG)
                Out.prln("Removing the listeners for  " + res.toString());
            AbstractResource.removeResourceListeners(res, listeners);
        } catch (Exception e) {
            if (DEBUG)
                Out.prln("Failed to remove the listeners for " + res.toString());
            throw new ResourceInstantiationException("Parameterisation failure" + e);
        }
    }
    // record the instantiation on the resource data's stack
    resData.addInstantiation(res);
    // fire the event
    creoleProxy.fireResourceLoaded(new CreoleEvent(res, CreoleEvent.RESOURCE_LOADED));
    return res;
}