| /* |
| * 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 org.apache.camel.commands; |
| |
| import java.io.PrintStream; |
| import java.net.URLDecoder; |
| import java.util.Hashtable; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.camel.util.URISupport; |
| |
| /** |
| * List the Camel REST services from the Rest registry available in the JVM. |
| */ |
| public class RestRegistryListCommand extends AbstractContextCommand { |
| |
| private static final String URL_COLUMN_NAME = "Url"; |
| private static final String BASE_PATH_LABEL = "Base Path"; |
| private static final String URI_TEMPLATE_LABEL = "Uri Template"; |
| private static final String METHOD_COLUMN_LABEL = "Method"; |
| private static final String STATE_COLUMN_LABEL = "State"; |
| private static final String ROUTE_COLUMN_LABEL = "Route Id"; |
| |
| private static final int DEFAULT_COLUMN_WIDTH_INCREMENT = 0; |
| private static final String DEFAULT_FIELD_PREAMBLE = " "; |
| private static final String DEFAULT_FIELD_POSTAMBLE = " "; |
| private static final String DEFAULT_HEADER_PREAMBLE = " "; |
| private static final String DEFAULT_HEADER_POSTAMBLE = " "; |
| private static final int DEFAULT_FORMAT_BUFFER_LENGTH = 24; |
| // endpoint uris can be very long so clip by default after 120 chars |
| private static final int MAX_COLUMN_WIDTH = 120; |
| private static final int MIN_COLUMN_WIDTH = 12; |
| |
| boolean decode = true; |
| boolean verbose; |
| |
| public RestRegistryListCommand(String context, boolean decode, boolean verbose) { |
| super(context); |
| this.decode = decode; |
| this.verbose = verbose; |
| } |
| |
| @Override |
| protected Object performContextCommand(CamelController camelController, String contextName, PrintStream out, PrintStream err) throws Exception { |
| List<Map<String, String>> services = camelController.getRestServices(contextName); |
| if (services.isEmpty()) { |
| out.print("There are no REST services"); |
| return null; |
| } |
| |
| final Map<String, Integer> columnWidths = computeColumnWidths(services); |
| final String headerFormat = buildFormatString(columnWidths, true, verbose); |
| final String rowFormat = buildFormatString(columnWidths, false, verbose); |
| |
| if (services.size() > 0) { |
| if (verbose) { |
| out.println(String.format(headerFormat, URL_COLUMN_NAME, BASE_PATH_LABEL, URI_TEMPLATE_LABEL, METHOD_COLUMN_LABEL, STATE_COLUMN_LABEL, ROUTE_COLUMN_LABEL)); |
| out.println(String.format(headerFormat, "---", "---------", "------------", "------", "-----", "--------")); |
| } else { |
| out.println(String.format(headerFormat, BASE_PATH_LABEL, URI_TEMPLATE_LABEL, METHOD_COLUMN_LABEL, STATE_COLUMN_LABEL, ROUTE_COLUMN_LABEL)); |
| out.println(String.format(headerFormat, "---------", "------------", "------", "-----", "--------")); |
| } |
| for (Map<String, String> row : services) { |
| String uri = null; |
| if (verbose) { |
| uri = row.get("url"); |
| if (decode) { |
| // decode uri so its more human readable |
| uri = URLDecoder.decode(uri, "UTF-8"); |
| } |
| // sanitize and mask uri so we dont see passwords |
| uri = URISupport.sanitizeUri(uri); |
| } |
| String basePath = row.get("basePath"); |
| String uriTemplate = row.get("uriTemplate") != null ? row.get("uriTemplate") : ""; |
| String method = row.get("method"); |
| String state = row.get("state"); |
| String route = row.get("routeId"); |
| if (verbose) { |
| out.println(String.format(rowFormat, uri, basePath, uriTemplate, method, state, route)); |
| } else { |
| out.println(String.format(rowFormat, basePath, uriTemplate, method, state, route)); |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| private Map<String, Integer> computeColumnWidths(List<Map<String, String>> services) throws Exception { |
| int maxUriLen = 0; |
| int maxBasePathLen = 0; |
| int maxUriTemplateLen = 0; |
| int maxMethodLen = 0; |
| int maxStatusLen = 0; |
| int maxRouteLen = 0; |
| |
| for (Map<String, String> row : services) { |
| String uri = row.get("url"); |
| if (decode) { |
| // decode uri so its more human readable |
| uri = URLDecoder.decode(uri, "UTF-8"); |
| } |
| // sanitize and mask uri so we dont see passwords |
| uri = URISupport.sanitizeUri(uri); |
| maxUriLen = Math.max(maxUriLen, uri == null ? 0 : uri.length()); |
| |
| String basePath = row.get("basePath"); |
| maxBasePathLen = Math.max(maxBasePathLen, basePath == null ? 0 : basePath.length()); |
| |
| String uriTemplate = row.get("uriTemplate"); |
| maxUriTemplateLen = Math.max(maxUriTemplateLen, uriTemplate == null ? 0 : uriTemplate.length()); |
| |
| String method = row.get("method"); |
| maxMethodLen = Math.max(maxMethodLen, method == null ? 0 : method.length()); |
| |
| String status = row.get("state"); |
| maxStatusLen = Math.max(maxStatusLen, status == null ? 0 : status.length()); |
| |
| String routeId = row.get("routeId"); |
| maxRouteLen = Math.max(maxRouteLen, routeId == null ? 0 : routeId.length()); |
| } |
| |
| final Map<String, Integer> retval = new Hashtable<>(); |
| retval.put(URL_COLUMN_NAME, maxUriLen); |
| retval.put(BASE_PATH_LABEL, maxBasePathLen); |
| retval.put(URI_TEMPLATE_LABEL, maxUriTemplateLen); |
| retval.put(METHOD_COLUMN_LABEL, maxMethodLen); |
| retval.put(STATE_COLUMN_LABEL, maxStatusLen); |
| retval.put(ROUTE_COLUMN_LABEL, maxRouteLen); |
| |
| return retval; |
| } |
| |
| private String buildFormatString(final Map<String, Integer> columnWidths, final boolean isHeader, final boolean isVerbose) { |
| final String fieldPreamble; |
| final String fieldPostamble; |
| final int columnWidthIncrement; |
| |
| if (isHeader) { |
| fieldPreamble = DEFAULT_HEADER_PREAMBLE; |
| fieldPostamble = DEFAULT_HEADER_POSTAMBLE; |
| } else { |
| fieldPreamble = DEFAULT_FIELD_PREAMBLE; |
| fieldPostamble = DEFAULT_FIELD_POSTAMBLE; |
| } |
| columnWidthIncrement = DEFAULT_COLUMN_WIDTH_INCREMENT; |
| |
| int uriLen = Math.min(columnWidths.get(URL_COLUMN_NAME) + columnWidthIncrement, getMaxColumnWidth()); |
| int basePathLen = Math.min(columnWidths.get(BASE_PATH_LABEL) + columnWidthIncrement, getMaxColumnWidth()); |
| int uriTemplateLen = Math.min(columnWidths.get(URI_TEMPLATE_LABEL) + columnWidthIncrement, getMaxColumnWidth()); |
| int methodLen = Math.min(columnWidths.get(METHOD_COLUMN_LABEL) + columnWidthIncrement, getMaxColumnWidth()); |
| int statusLen = Math.min(columnWidths.get(STATE_COLUMN_LABEL) + columnWidthIncrement, getMaxColumnWidth()); |
| int routeLen = Math.min(columnWidths.get(ROUTE_COLUMN_LABEL) + columnWidthIncrement, getMaxColumnWidth()); |
| uriLen = Math.max(MIN_COLUMN_WIDTH, uriLen); |
| basePathLen = Math.max(MIN_COLUMN_WIDTH, basePathLen); |
| uriTemplateLen = Math.max(MIN_COLUMN_WIDTH, uriTemplateLen); |
| methodLen = Math.max(MIN_COLUMN_WIDTH, methodLen); |
| statusLen = Math.max(MIN_COLUMN_WIDTH, statusLen); |
| |
| // last row does not have min width |
| |
| final StringBuilder retval = new StringBuilder(DEFAULT_FORMAT_BUFFER_LENGTH); |
| if (isVerbose) { |
| retval.append(fieldPreamble).append("%-").append(uriLen).append('.').append(uriLen).append('s').append(fieldPostamble).append(' '); |
| } |
| retval.append(fieldPreamble).append("%-").append(basePathLen).append('.').append(basePathLen).append('s').append(fieldPostamble).append(' '); |
| retval.append(fieldPreamble).append("%-").append(uriTemplateLen).append('.').append(uriTemplateLen).append('s').append(fieldPostamble).append(' '); |
| retval.append(fieldPreamble).append("%-").append(methodLen).append('.').append(methodLen).append('s').append(fieldPostamble).append(' '); |
| retval.append(fieldPreamble).append("%-").append(statusLen).append('.').append(statusLen).append('s').append(fieldPostamble).append(' '); |
| retval.append(fieldPreamble).append("%-").append(routeLen).append('.').append(routeLen).append('s').append(fieldPostamble).append(' '); |
| |
| return retval.toString(); |
| } |
| |
| private int getMaxColumnWidth() { |
| if (verbose) { |
| return Integer.MAX_VALUE; |
| } else { |
| return MAX_COLUMN_WIDTH; |
| } |
| } |
| } |