/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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 org.dashbuilder.navigation.impl;
import java.util.Stack;
import org.dashbuilder.navigation.NavDivider;
import org.dashbuilder.navigation.NavGroup;
import org.dashbuilder.navigation.NavItem;
import org.dashbuilder.navigation.NavFactory;
import org.dashbuilder.navigation.NavItemContext;
import org.dashbuilder.navigation.NavTree;
public class NavTreeBuilder {
NavFactory factory = NavFactory.get();
Stack<NavGroup> stack = new Stack<>();
NavGroup root = factory.createNavGroup();
public NavTreeBuilder() {
stack.push(root);
}
public NavTreeBuilder group(String id, String name, String description, boolean modifiable) {
NavGroup item = factory.createNavGroup();
item.setId(id);
item.setName(name);
item.setDescription(description);
item.setModifiable(modifiable);
stackGroup(item);
return this;
}
public NavTreeBuilder item(String id, String name, String description, boolean modifiable) {
return item(id, name, description, modifiable, (String) null);
}
public NavTreeBuilder item(String id, String name, String description, boolean modifiable, NavItemContext itemCtx) {
return item(id, name, description, modifiable, itemCtx != null ? itemCtx.toString() : null);
}
public NavTreeBuilder item(String id, String name, String description, boolean modifiable, String itemCtx) {
NavItem item = factory.createNavItem();
item.setId(id);
item.setName(name);
item.setDescription(description);
item.setModifiable(modifiable);
item.setContext(itemCtx);
stackItem(item);
return this;
}
public NavTreeBuilder divider() {
NavDivider item = factory.createDivider();
item.setId(Integer.toString(item.hashCode()));
stackItem(item);
return this;
}
public NavTreeBuilder endGroup() {
if (!stack.isEmpty()) {
stack.pop();
} else {
throw new IllegalStateException("Call group first");
}
return this;
}
public NavTree build() {
return new NavTreeImpl(root);
}
private void stackGroup(NavGroup item) {
stackItem(item);
stack.push(item);
}
private void stackItem(NavItem item) {
NavGroup group = stack.peek();
item.setParent(group == root ? null : group);
group.getChildren().add(item);
}
}