Example usage for org.apache.commons.jxpath JXPathContext iterate

List of usage examples for org.apache.commons.jxpath JXPathContext iterate

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Introduction

In this page you can find the example usage for org.apache.commons.jxpath JXPathContext iterate.

Prototype

public abstract Iterator iterate(String xpath);

Source Link

Document

Traverses the xpath and returns an Iterator of all results found for the path.

Usage

From source file:jsondb.JsonDBTemplate.java

@SuppressWarnings("unchecked")
@Override//from   w  w  w.  j  a  va 2 s  . c  o m
public <T> List<T> findAllAndModify(String jxQuery, Update update, String collectionName) {
    CollectionMetaData cmd = cmdMap.get(collectionName);
    Map<Object, T> collection = (Map<Object, T>) collectionsRef.get().get(collectionName);
    if ((null == cmd) || (null == collection)) {
        throw new InvalidJsonDbApiUsageException("Die Collection mit dem Namen '" + collectionName
                + "' wurde nicht gefunden. Bitte zuvor anlegen.");
    }
    cmd.getCollectionLock().writeLock().lock();
    try {
        JXPathContext context = contextsRef.get().get(collectionName);
        Iterator<T> resultItr = context.iterate(jxQuery);
        Map<Object, T> clonedModifiedObjects = new HashMap<Object, T>();

        while (resultItr.hasNext()) {
            T objectToModify = resultItr.next();
            T clonedModifiedObject = (T) Util.deepCopy(objectToModify);

            for (Entry<String, Object> entry : update.getUpdateData().entrySet()) {
                Object newValue = Util.deepCopy(entry.getValue());
                if (encrypted && cmd.hasSecret() && cmd.isSecretField(entry.getKey())) {
                    newValue = dbConfig.getCipher().encrypt(newValue.toString());
                }
                try {
                    BeanUtils.copyProperty(clonedModifiedObject, entry.getKey(), newValue);
                } catch (IllegalAccessException | InvocationTargetException e) {
                    Logger.error(
                            "Failed to copy updated data into existing collection document using BeanUtils", e);
                    return null;
                }
            }
            Object id = Util.getIdForEntity(clonedModifiedObject, cmd.getIdAnnotatedFieldGetterMethod());
            clonedModifiedObjects.put(id, clonedModifiedObject);
        }

        JsonWriter jw = null;
        try {
            jw = new JsonWriter(dbConfig, cmd, collectionName, fileObjectsRef.get().get(collectionName));
        } catch (IOException ioe) {
            Logger.error("Failed to obtain writer for " + collectionName, ioe);
            throw new JsonDBException("Failed to save " + collectionName, ioe);
        }
        boolean updateResult = jw.updateInJsonFile(collection, clonedModifiedObjects);
        if (updateResult) {
            collection.putAll(clonedModifiedObjects);
            //Clone it once more because we want to disconnect it from the in-memory objects before returning.
            List<T> returnObjects = new ArrayList<T>();
            for (T obj : clonedModifiedObjects.values()) {
                //Clone it once more because we want to disconnect it from the in-memory objects before returning.
                T returnObj = (T) Util.deepCopy(obj);
                if (encrypted && cmd.hasSecret() && null != returnObj) {
                    CryptoUtil.decryptFields(returnObj, cmd, dbConfig.getCipher());
                }
                returnObjects.add(returnObj);
            }
            return returnObjects;
        }
        return null;
    } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
        Logger.error("Error when decrypting value for a @Secret annotated field for entity: " + collectionName,
                e);
        throw new JsonDBException(
                "Error when decrypting value for a @Secret annotated field for entity: " + collectionName, e);
    } finally {
        cmd.getCollectionLock().writeLock().unlock();
    }
}

From source file:jsondb.JsonDBTemplate.java

@Override
public <T> List<T> findAllAndRemove(String jxQuery, String collectionName) {
    CollectionMetaData cmd = cmdMap.get(collectionName);
    @SuppressWarnings("unchecked")
    Map<Object, T> collection = (Map<Object, T>) collectionsRef.get().get(collectionName);
    if ((null == cmd) || (null == collection)) {
        throw new InvalidJsonDbApiUsageException(
                "Collection by name '" + collectionName + "' not found. Create collection first.");
    }//from   www  .j  a  v a  2s  . com
    cmd.getCollectionLock().writeLock().lock();
    try {
        JXPathContext context = contextsRef.get().get(collectionName);
        @SuppressWarnings("unchecked")
        Iterator<T> resultItr = context.iterate(jxQuery);
        Set<Object> removeIds = new HashSet<Object>();
        while (resultItr.hasNext()) {
            T objectToRemove = resultItr.next();
            Object idToRemove = Util.getIdForEntity(objectToRemove, cmd.getIdAnnotatedFieldGetterMethod());
            removeIds.add(idToRemove);
        }

        if (removeIds.size() < 1) {
            return null;
        }

        JsonWriter jw;
        try {
            jw = new JsonWriter(dbConfig, cmd, collectionName, fileObjectsRef.get().get(collectionName));
        } catch (IOException ioe) {
            Logger.error("Failed to obtain writer for " + collectionName, ioe);
            throw new JsonDBException("Failed to save " + collectionName, ioe);
        }
        boolean substractResult = jw.removeFromJsonFile(collection, removeIds);

        List<T> removedObjects = null;
        if (substractResult) {
            removedObjects = new ArrayList<T>();
            for (Object id : removeIds) {
                // Don't need to clone it, this object no more exists in the collection
                removedObjects.add(collection.remove(id));
            }
        }
        return removedObjects;

    } finally {
        cmd.getCollectionLock().writeLock().unlock();
    }
}

From source file:jsondb.JsonDBTemplate.java

@Override
public <T> T findAndRemove(String jxQuery, String collectionName) {
    if (null == jxQuery) {
        throw new InvalidJsonDbApiUsageException("Query string cannot be null.");
    }/*from w  ww  .ja v a  2s . c o m*/
    CollectionMetaData cmd = cmdMap.get(collectionName);
    @SuppressWarnings("unchecked")
    Map<Object, T> collection = (Map<Object, T>) collectionsRef.get().get(collectionName);
    if ((null == cmd) || (null == collection)) {
        throw new InvalidJsonDbApiUsageException(
                "Collection by name '" + collectionName + "' not found. Create collection first.");
    }
    cmd.getCollectionLock().writeLock().lock();
    try {
        JXPathContext context = contextsRef.get().get(collectionName);
        @SuppressWarnings("unchecked")
        Iterator<T> resultItr = context.iterate(jxQuery);
        T objectToRemove = null;
        while (resultItr.hasNext()) {
            objectToRemove = resultItr.next();
            break; // Use only the first element we find.
        }
        if (null != objectToRemove) {
            Object idToRemove = Util.getIdForEntity(objectToRemove, cmd.getIdAnnotatedFieldGetterMethod());
            if (!collection.containsKey(idToRemove)) { //This will never happen since the object was located based of jxQuery
                throw new InvalidJsonDbApiUsageException(String
                        .format("Objects with Id %s not found in collection %s", idToRemove, collectionName));
            }

            JsonWriter jw;
            try {
                jw = new JsonWriter(dbConfig, cmd, collectionName, fileObjectsRef.get().get(collectionName));
            } catch (IOException ioe) {
                Logger.error("Failed to obtain writer for " + collectionName, ioe);
                throw new JsonDBException("Failed to save " + collectionName, ioe);
            }
            boolean substractResult = jw.removeFromJsonFile(collection, idToRemove);
            if (substractResult) {
                T objectRemoved = collection.remove(idToRemove);
                // Don't need to clone it, this object no more exists in the collection
                return objectRemoved;
            } else {
                Logger.error("Unexpected, Failed to substract the object");
            }
        }
        return null; //Either the jxQuery found nothing or actual FileIO failed to substract it.
    } finally {
        cmd.getCollectionLock().writeLock().unlock();
    }
}

From source file:fr.cls.atoll.motu.library.misc.data.CatalogData.java

static public List<Object> findJaxbElementUsingJXPath(Object object, String xPath) {

    List<Object> listObjectFound = new ArrayList<Object>();

    JXPathContext context = JXPathContext.newContext(object);
    context.setLenient(true);/*  w w w.ja  v  a  2s. c o m*/
    // Object oo =
    // context.getValue("//threddsMetadataGroup[name='{http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0}serviceName']/value");
    // Object oo =
    // context.getValue("//threddsMetadataGroup[name='{http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0}serviceName']/value");
    // Iterator it =
    // context.iterate("//threddsMetadataGroup[name='{http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0}serviceName']/value");
    Iterator<?> it = context.iterate(xPath);
    while (it.hasNext()) {
        listObjectFound.add(it.next());
    }
    return listObjectFound;
}

From source file:nz.org.take.r2ml.util.TypeVariablesFilter.java

public void repair(RuleBase ruleBase) throws R2MLException {

    JXPathContext context = JXPathContext.newContext(ruleBase);
    ObjectFactory of = new ObjectFactory();

    // search objectclassificationatoms that contain untyped variables
    context = JXPathContext.newContext(ruleBase);
    Iterator implicitTypedVars = context.iterate(
            "//qfAndOrNafNegFormula" + "[declaredType='class de.tu_cottbus.r2ml.ObjectClassificationAtom']"
                    + "[value/objectTerm/declaredType='class de.tu_cottbus.r2ml.ObjectVariable']"
                    + "[not(value/objectTerm/value/classID)]" + "/value");

    while (implicitTypedVars.hasNext()) {
        try {//from ww  w  . j  a  va  2  s .c om
            ObjectClassificationAtom classification = (ObjectClassificationAtom) implicitTypedVars.next();

            ObjectVariable var = (ObjectVariable) classification.getObjectTerm().getValue();
            ObjectVariable newVar = of.createObjectVariable();
            newVar.setName(var.getName());
            newVar.setTypeCategory(var.getTypeCategory());
            newVar.setClassID(classification.getClassID());
            classification.setObjectTerm(of.createObjectVariable(newVar));
        } catch (RuntimeException e) {
            if (R2MLDriver.get().logger.isDebugEnabled())
                R2MLDriver.get().logger.debug("Exception occured while typing all variables.", e);
            throw new R2MLException("Unable to type variables in rule base, abort rule import.");
        }
    }

    // search already typed variables and save them in a hash-map
    Iterator typedVar = context
            .iterate("//objectTerm[declaredType='class de.tu_cottbus.r2ml.ObjectVariable']/value[classID]");// ce.iterate(context);
    Map<String, QName> classID4name = new HashMap<String, QName>();
    while (typedVar.hasNext()) {
        try {
            ObjectVariable element = (ObjectVariable) typedVar.next();
            classID4name.put(element.getName(), element.getClassID());
        } catch (RuntimeException e) {
        }
    }

    // search all untyped variables and look up the types in the classId
    // hashmap
    Iterator untypedVar = context.iterate(
            "//objectTerm[declaredType='class de.tu_cottbus.r2ml.ObjectVariable']/value[not(classID)]");
    while (untypedVar.hasNext()) {
        ObjectVariable element = (ObjectVariable) untypedVar.next();
        QName classID = classID4name.get(element.getName());
        if (classID != null) {
            element.setClassID(classID);
        }
    }

}

From source file:org.apache.cocoon.components.modules.input.JXPathHelper.java

public static Object[] getAttributeValues(String name, Configuration modeConf, JXPathHelperConfiguration setup,
        Object contextObj) throws ConfigurationException {

    if (contextObj == null) {
        return null;
    }//from  w ww.  jav a  2s.  com

    try {
        JXPathContext jxContext = JXPathContext.newContext(contextObj);
        setup(setup, jxContext, modeConf);

        List values = null;
        Iterator i = jxContext.iterate(name);
        if (i.hasNext()) {
            values = new LinkedList();
        }
        while (i.hasNext()) {
            values.add(i.next());
        }
        Object[] obj = null;
        if (values != null) {
            obj = values.toArray();
            if (obj.length == 0) {
                obj = null;
            }
        }
        return obj;
    } catch (Exception e) {
        throw new ConfigurationException("Module does not support <" + name + ">" + "attribute.", e);
    }
}

From source file:org.apache.cocoon.forms.binding.MultiValueJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) throws BindingException {
    Widget widget = selectWidget(frmModel, this.multiValueId);
    if (widget == null) {
        throw new BindingException("The widget with the ID [" + this.multiValueId
                + "] referenced in the binding does not exist in the form definition.");
    }/*w w w. j  a v a2 s  . c  o  m*/

    // Move to multi value context
    Pointer ptr = jctx.getPointer(this.multiValuePath);
    if (ptr.getNode() != null) {
        // There are some nodes to load from

        JXPathContext multiValueContext = jctx.getRelativeContext(ptr);
        // build a jxpath iterator for pointers
        Iterator rowPointers = multiValueContext.iterate(this.rowPath);

        LinkedList list = new LinkedList();

        while (rowPointers.hasNext()) {
            Object value = rowPointers.next();

            if (value != null && convertor != null) {
                if (value instanceof String) {
                    ConversionResult conversionResult = convertor.convertFromString((String) value,
                            convertorLocale, null);
                    if (conversionResult.isSuccessful())
                        value = conversionResult.getResult();
                    else
                        value = null;
                } else {
                    getLogger().warn("Convertor ignored on backend-value which isn't of type String.");
                }
            }

            list.add(value);
        }

        widget.setValue(list.toArray());
    }

    if (getLogger().isDebugEnabled())
        getLogger().debug("done loading values " + toString());
}

From source file:org.apache.cocoon.woody.binding.MultiValueJXPathBinding.java

public void doLoad(Widget frmModel, JXPathContext jctx) throws BindingException {
    Widget widget = frmModel.getWidget(this.multiValueId);
    if (widget == null) {
        throw new BindingException("The widget with the ID [" + this.multiValueId
                + "] referenced in the binding does not exist in the form definition.");
    }/*from  w w  w  . j  av  a2  s.  com*/

    // Move to multi value context
    Pointer ptr = jctx.getPointer(this.multiValuePath);
    if (ptr.getNode() != null) {
        // There are some nodes to load from

        JXPathContext multiValueContext = jctx.getRelativeContext(ptr);
        // build a jxpath iterator for pointers
        Iterator rowPointers = multiValueContext.iterate(this.rowPath);

        LinkedList list = new LinkedList();

        while (rowPointers.hasNext()) {
            Object value = rowPointers.next();

            if (value != null && convertor != null) {
                if (value instanceof String) {
                    value = convertor.convertFromString((String) value, convertorLocale, null);
                } else {
                    getLogger().warn("Convertor ignored on backend-value which isn't of type String.");
                }
            }

            list.add(value);
        }

        widget.setValue(list.toArray());
    }

    if (getLogger().isDebugEnabled())
        getLogger().debug("done loading values " + toString());
}

From source file:org.chiba.xml.xforms.ui.RepeatIndexTest.java

/**
 * Sets up the test.//  ww w .j ava 2 s .  c  o m
 *
 * @throws Exception in any error occurred during setup.
 */
protected void setUp() throws Exception {
    this.chibaBean = new ChibaBean();
    this.chibaBean.setXMLContainer(getClass().getResourceAsStream("RepeatIndexTest.xhtml"));
    this.chibaBean.init();

    JXPathContext context = JXPathContext.newContext(this.chibaBean.getXMLContainer());

    // iterate unrolled repeats
    Iterator repeatIterator = context.iterate("//xf:repeat[chiba:data]/@id");
    this.enclosingRepeat = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
    this.nestedRepeat1 = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
    this.nestedRepeat2 = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
    this.nestedRepeat3 = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());

    // iterate repeated inputs
    Iterator inputIterator = context.iterate("//xf:input/@id");
    this.input11 = (Text) this.chibaBean.getContainer().lookup(inputIterator.next().toString());
    this.input12 = (Text) this.chibaBean.getContainer().lookup(inputIterator.next().toString());
    inputIterator.next(); // skip repeat prototype

    this.input21 = (Text) this.chibaBean.getContainer().lookup(inputIterator.next().toString());
    this.input22 = (Text) this.chibaBean.getContainer().lookup(inputIterator.next().toString());
    inputIterator.next(); // skip repeat prototype

    this.input31 = (Text) this.chibaBean.getContainer().lookup(inputIterator.next().toString());
    this.input32 = (Text) this.chibaBean.getContainer().lookup(inputIterator.next().toString());

    // iterate repeated actions
    Iterator actionIterator = context.iterate("//xf:action/@id");
    this.action11 = (XFormsAction) this.chibaBean.getContainer().lookup(actionIterator.next().toString());
    this.action12 = (XFormsAction) this.chibaBean.getContainer().lookup(actionIterator.next().toString());
    actionIterator.next(); // skip repeat prototype

    this.action21 = (XFormsAction) this.chibaBean.getContainer().lookup(actionIterator.next().toString());
    this.action22 = (XFormsAction) this.chibaBean.getContainer().lookup(actionIterator.next().toString());
    actionIterator.next(); // skip repeat prototype

    this.action31 = (XFormsAction) this.chibaBean.getContainer().lookup(actionIterator.next().toString());
    this.action32 = (XFormsAction) this.chibaBean.getContainer().lookup(actionIterator.next().toString());
}

From source file:org.chiba.xml.xforms.ui.RepeatItemTest.java

/**
 * Sets up the test./*from   w w w.j  av a  2s  .c  o  m*/
 *
 * @throws Exception in any error occurred during setup.
 */
protected void setUp() throws Exception {
    this.chibaBean = new ChibaBean();
    this.chibaBean.setXMLContainer(getClass().getResourceAsStream("RepeatItemTest.xhtml"));
    this.chibaBean.init();

    JXPathContext context = JXPathContext.newContext(this.chibaBean.getXMLContainer());

    // iterate unrolled repeats
    Iterator repeatIterator = context.iterate("//xf:repeat[chiba:data]/@id");
    this.enclosingRepeat = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
    this.nestedRepeat1 = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
    this.nestedRepeat2 = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
    this.nestedRepeat3 = (Repeat) this.chibaBean.getContainer().lookup(repeatIterator.next().toString());
}