/*
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* Copyright 2014 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.transport.ssh.commands;
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import java.util.ArrayList;
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import java.util.List;
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import org.kohsuke.args4j.Argument;
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import com.gitblit.utils.StringUtils;
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/**
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* List command that accepts a filter parameter.
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*
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* @author James Moger
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*
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* @param <T>
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*/
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public abstract class ListFilterCommand<T> extends ListCommand<T> {
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@Argument(index = 0, metaVar = "FILTER", usage = "filter expression")
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private String filter;
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protected abstract boolean matches(String filter, T t);
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@Override
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public void run() throws UnloggedFailure {
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validateOutputFormat();
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List<T> list = getItems();
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List<T> filtered;
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if (StringUtils.isEmpty(filter)) {
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// no filter
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filtered = list;
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} else {
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// filter the list
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filtered = new ArrayList<T>();
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for (T t : list) {
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if (matches(filter, t)) {
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filtered.add(t);
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}
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}
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}
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if (tabbed) {
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asTabbed(filtered);
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} else if (json) {
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asJSON(filtered);
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} else {
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asTable(filtered);
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}
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}
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}
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