/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package de.unioninvestment.eai.portal.portlet.crud.domain.model;
import com.vaadin.data.Item;
import de.unioninvestment.eai.portal.portlet.crud.domain.container.GenericVaadinContainerEventWrapper;
import de.unioninvestment.eai.portal.portlet.crud.domain.events.BeforeCommitEvent;
import de.unioninvestment.eai.portal.portlet.crud.domain.events.CommitEvent;
import de.unioninvestment.eai.portal.portlet.crud.domain.exception.ContainerException;
import de.unioninvestment.eai.portal.portlet.crud.domain.model.filter.CustomFilter;
import de.unioninvestment.eai.portal.portlet.crud.domain.model.filter.CustomFilterMatcher;
import de.unioninvestment.eai.portal.portlet.crud.domain.model.filter.Filter;
import de.unioninvestment.eai.portal.support.vaadin.container.*;
import de.unioninvestment.eai.portal.support.vaadin.mvp.EventBus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.nio.CharBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Repräsentation eines auf generischen Daten basierten Vaadin Containers als
* Backend für die Tabellenansicht.
*
* @author markus.bonsch
*
*/
public class GenericDataContainer extends AbstractDataContainer {
private static final Logger LOGGER = LoggerFactory
.getLogger(GenericDataContainer.class);
private static final long serialVersionUID = 1L;
private GenericDelegate delegate;
private MetaData metaData;
/**
* Maps Vaadin Custom filtering to a matcher that gets a
* {@link ContainerRow} instead of a Vaadin {@link Item}.
*
* @author carsten.mjartan
*/
private static class CustomFilterMatcherWrapper
implements
de.unioninvestment.eai.portal.support.vaadin.filter.CustomFilter.Matcher {
private final GenericDataContainer container;
private final CustomFilterMatcher matcher;
public CustomFilterMatcherWrapper(GenericDataContainer container,
CustomFilterMatcher matcher) {
this.container = container;
this.matcher = matcher;
}
@Override
public boolean matches(Object itemId, Item item) {
ContainerRow row = container.convertItemToRow(item, false, true);
return matcher.matches(row);
}
}
/**
* @param eventBus
* für Events
* @param formatPattern
* Formatinformationen
* @param defaultOrder
* @param filterPolicy
*/
public GenericDataContainer(EventBus eventBus,
Map<String, String> formatPattern,
List<ContainerOrder> defaultOrder, FilterPolicy filterPolicy) {
super(eventBus, formatPattern, defaultOrder, filterPolicy);
}
@Override
public boolean isInsertable() {
return getMetaData().isInsertSupported();
}
@Override
public boolean isUpdateable() {
return getMetaData().isUpdateSupported();
}
@Override
public boolean isDeleteable() {
return getMetaData().isRemoveSupported();
}
@Override
public List<String> getPrimaryKeyColumns() {
return new ArrayList<String>(getMetaData().getPrimaryKeys());
}
@Override
public List<String> getColumns() {
return new ArrayList<String>(getMetaData().getColumnNames());
}
@Override
public ContainerClob getCLob(ContainerRowId containerRowId,
String columnName) {
getVaadinContainer();
if (clobFields.containsKey(containerRowId)) {
if (clobFields.get(containerRowId).containsKey(columnName)) {
return clobFields.get(containerRowId).get(columnName);
}
}
if (containerRowId.getInternalId() instanceof TemporaryItemId) {
ContainerClob clob = new ContainerClob();
setCLob(containerRowId, columnName, clob);
return clob;
}
ContainerClob clob = new ContainerClob((CharBuffer) container
.getContainerProperty(containerRowId, columnName).getValue());
setCLob(containerRowId, columnName, clob);
return clob;
}
@Override
public Class<?> getType(String name) {
Class<?> type = getVaadinContainer().getType(name);
if (type == null) {
LOGGER.info(
"Could not retrieve type information for column '{}'. Does it exist in the backend?",
name);
return null;
} else if (CharBuffer.class.isAssignableFrom(type)) {
return ContainerClob.class;
} else if (byte[].class.isAssignableFrom(type)) {
return ContainerBlob.class;
} else {
return type;
}
}
@Override
public boolean isCLob(String columnName) {
return ContainerClob.class.equals(getType(columnName));
}
@Override
public boolean isBLob(String columnName) {
return ContainerBlob.class.equals(getType(columnName));
}
@Override
public ContainerBlob getBLob(ContainerRowId rowId, String columnName) {
getVaadinContainer();
if (blobFields.containsKey(rowId)) {
if (blobFields.get(rowId).containsKey(columnName)) {
return blobFields.get(rowId).get(columnName);
}
}
if (rowId.getInternalId() instanceof TemporaryItemId) {
ContainerBlob blob = new ContainerBlob();
setBLob(rowId, columnName, blob);
return blob;
}
ContainerBlob blob = new ContainerBlob((byte[]) container
.getContainerProperty(rowId, columnName).getValue());
setBLob(rowId, columnName, blob);
return blob;
}
@Override
public boolean isBLobEmpty(ContainerRowId rowId, String columnName) {
ContainerBlob blob = getBLob(rowId, columnName);
if (blob != null)
return blob.isEmpty();
return true;
}
public void setDelegate(GenericDelegate backend) {
this.delegate = backend;
}
@Override
protected GenericVaadinContainerEventWrapper createVaadinContainer() {
metaData = delegate.getMetaData();
return new GenericVaadinContainerEventWrapper(delegate, this,
getOnCreateEventRouter(), getOnInsertEventRouter(),
getOnUpdateEventRouter(), getOnDeleteEventRouter());
}
/**
* @return metadata from a lazily instantiated container
*/
protected MetaData getMetaData() {
getVaadinContainer();
return metaData;
}
@Override
protected GenericVaadinContainerEventWrapper getVaadinContainer() {
return (GenericVaadinContainerEventWrapper) super.getVaadinContainer();
}
@Override
public void commit() {
getBeforeCommitEventRouter().fireEvent(new BeforeCommitEvent(this));
if (getVaadinContainer().isModified()) {
try {
getVaadinContainer().commit();
} catch (Exception e) {
throw new ContainerException(e);
}
getOnCommitEventRouter().fireEvent(new CommitEvent(this));
} else {
getVaadinContainer().fireContentsChange();
}
}
@Override
public void rollback() {
try {
getVaadinContainer().rollback();
} finally {
clearAdditionalFields();
}
}
@Override
public void refresh() {
getVaadinContainer().refresh();
applyDefaultOrder();
}
@Override
public ContainerRow convertItemToRow(Item item, boolean transactional,
boolean immutable) {
GenericContainerRowId id = new GenericContainerRowId(
((GenericItem) item).getId(), getPrimaryKeyColumns());
return new GenericContainerRow(id, (GenericItem) item, this,
transactional, immutable);
}
@Override
public ContainerRowId convertInternalRowId(Object s) {
final GenericItemId rowId;
if (s instanceof GenericItemId) {
rowId = (GenericItemId) s;
} else if (s instanceof GenericItem) {
rowId = ((GenericItem) s).getId();
} else {
throw new IllegalArgumentException(s.getClass() + " nicht erlaubt.");
}
return new GenericContainerRowId(rowId, getPrimaryKeyColumns());
}
@Override
com.vaadin.data.Container.Filter buildVaadinFilter(Filter filter) {
if (filter instanceof CustomFilter) {
return buildCustomFilter(filter);
} else {
return super.buildVaadinFilter(filter);
}
}
private com.vaadin.data.Container.Filter buildCustomFilter(Filter filter) {
CustomFilter customFilter = (CustomFilter) filter;
return new de.unioninvestment.eai.portal.support.vaadin.filter.CustomFilter(
new CustomFilterMatcherWrapper(this, customFilter.getMatcher()));
}
/**
* Only for Unit Tests
*
* @param metaData
*/
protected void setMetaData(MetaData metaData) {
this.metaData = metaData;
}
public GenericDelegate getDelegate() {
return delegate;
}
}