| /******************************************************************************* |
| * Copyright (c) 2006, 2008 Steffen Pingel and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.trac.core.model; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.net.URLDecoder; |
| import java.net.URLEncoder; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.StringTokenizer; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.mylyn.commons.core.StatusHandler; |
| import org.eclipse.mylyn.internal.trac.core.TracCorePlugin; |
| import org.eclipse.mylyn.internal.trac.core.client.ITracClient; |
| import org.eclipse.mylyn.internal.trac.core.model.TracSearchFilter.CompareOperator; |
| |
| /** |
| * Represents a Trac search. A search can have multiple {@link TracSearchFilter}s that all need to match. |
| * |
| * @author Steffen Pingel |
| */ |
| public class TracSearch { |
| |
| /** Stores search criteria in the order entered by the user. */ |
| private final Map<String, TracSearchFilter> filterByFieldName = new LinkedHashMap<String, TracSearchFilter>(); |
| |
| /** The field the result is ordered by. */ |
| private String orderBy; |
| |
| private boolean ascending = true; |
| |
| public TracSearch(String queryParameter) { |
| fromUrl(queryParameter); |
| } |
| |
| public TracSearch() { |
| } |
| |
| public void addFilter(String key, String value) { |
| TracSearchFilter filter = filterByFieldName.get(key); |
| if (filter == null) { |
| filter = new TracSearchFilter(key); |
| CompareOperator operator = CompareOperator.fromUrl(value); |
| filter.setOperator(operator); |
| filterByFieldName.put(key, filter); |
| } |
| |
| filter.addValue(value.substring(filter.getOperator().getQueryValue().length())); |
| } |
| |
| public void addFilter(TracSearchFilter filter) { |
| filterByFieldName.put(filter.getFieldName(), filter); |
| } |
| |
| public List<TracSearchFilter> getFilters() { |
| return new ArrayList<TracSearchFilter>(filterByFieldName.values()); |
| } |
| |
| public void setAscending(boolean ascending) { |
| this.ascending = ascending; |
| } |
| |
| public boolean isAscending() { |
| return ascending; |
| } |
| |
| public void setOrderBy(String orderBy) { |
| this.orderBy = orderBy; |
| } |
| |
| public String getOrderBy() { |
| return orderBy; |
| } |
| |
| /** |
| * Returns a Trac query string that conforms to the format defined at {@link http |
| * ://projects.edgewall.com/trac/wiki/TracQuery#QueryLanguage}. |
| * |
| * @return the empty string, if no search order and criteria are defined; a string that starts with &, otherwise |
| */ |
| public String toQuery() { |
| StringBuilder sb = new StringBuilder(); |
| if (orderBy != null) { |
| sb.append("&order="); //$NON-NLS-1$ |
| sb.append(orderBy); |
| if (!ascending) { |
| sb.append("&desc=1"); //$NON-NLS-1$ |
| } |
| } |
| for (TracSearchFilter filter : filterByFieldName.values()) { |
| sb.append("&"); //$NON-NLS-1$ |
| sb.append(filter.getFieldName()); |
| sb.append(filter.getOperator().getQueryValue()); |
| sb.append("="); //$NON-NLS-1$ |
| List<String> values = filter.getValues(); |
| for (Iterator<String> it = values.iterator(); it.hasNext();) { |
| sb.append(it.next()); |
| if (it.hasNext()) { |
| sb.append("|"); //$NON-NLS-1$ |
| } |
| } |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * Returns a URL encoded string that can be passed as an argument to the Trac query script. |
| * |
| * @return the empty string, if no search order and criteria are defined; a string that starts with &, otherwise |
| */ |
| public String toUrl() { |
| StringBuilder sb = new StringBuilder(); |
| if (orderBy != null) { |
| sb.append("&order="); //$NON-NLS-1$ |
| sb.append(orderBy); |
| if (!ascending) { |
| sb.append("&desc=1"); //$NON-NLS-1$ |
| } |
| } else if (filterByFieldName.isEmpty()) { |
| // TODO figure out why search must be ordered when logged in (otherwise |
| // no results will be returned) |
| sb.append("&order=id"); //$NON-NLS-1$ |
| } |
| |
| for (TracSearchFilter filter : filterByFieldName.values()) { |
| for (String value : filter.getValues()) { |
| sb.append("&"); //$NON-NLS-1$ |
| sb.append(filter.getFieldName()); |
| sb.append("="); //$NON-NLS-1$ |
| try { |
| sb.append(URLEncoder.encode(filter.getOperator().getQueryValue(), ITracClient.CHARSET)); |
| sb.append(URLEncoder.encode(value, ITracClient.CHARSET)); |
| } catch (UnsupportedEncodingException e) { |
| StatusHandler.log(new Status(IStatus.WARNING, TracCorePlugin.ID_PLUGIN, |
| "Unexpected exception while decoding URL", e)); //$NON-NLS-1$ |
| } |
| } |
| } |
| return sb.toString(); |
| } |
| |
| public void fromUrl(String url) { |
| StringTokenizer t = new StringTokenizer(url, "&"); //$NON-NLS-1$ |
| while (t.hasMoreTokens()) { |
| String token = t.nextToken(); |
| int i = token.indexOf("="); //$NON-NLS-1$ |
| if (i != -1) { |
| try { |
| String key = URLDecoder.decode(token.substring(0, i), ITracClient.CHARSET); |
| String value = URLDecoder.decode(token.substring(i + 1), ITracClient.CHARSET); |
| |
| if ("order".equals(key)) { //$NON-NLS-1$ |
| setOrderBy(value); |
| } else if ("desc".equals(key)) { //$NON-NLS-1$ |
| setAscending(!"1".equals(value)); //$NON-NLS-1$ |
| } else if ("group".equals(key) || "groupdesc".equals(key) || "verbose".equals(key)) { //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| // ignore these parameters |
| } else { |
| addFilter(key, value); |
| } |
| } catch (UnsupportedEncodingException e) { |
| StatusHandler.log(new Status(IStatus.WARNING, TracCorePlugin.ID_PLUGIN, |
| "Unexpected exception while decoding URL", e)); //$NON-NLS-1$ |
| } |
| } |
| } |
| } |
| |
| } |