| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| Command |
|
| 1.6923076923076923;1.692 |
| 1 | /* | |
| 2 | * Copyright 20078 the original author or authors. | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package org.mockftpserver.core.command; | |
| 17 | ||
| 18 | import org.mockftpserver.core.CommandSyntaxException; | |
| 19 | import org.mockftpserver.core.util.Assert; | |
| 20 | ||
| 21 | import java.util.Arrays; | |
| 22 | import java.util.List; | |
| 23 | ||
| 24 | /** | |
| 25 | * Represents a command received from an FTP client, containing a command name and parameters. | |
| 26 | * Objects of this class are immutable. | |
| 27 | * | |
| 28 | * @author Chris Mair | |
| 29 | * @version $Revision: 77 $ - $Date: 2008-07-01 22:11:32 -0400 (Tue, 01 Jul 2008) $ | |
| 30 | */ | |
| 31 | public final class Command { | |
| 32 | ||
| 33 | private String name; | |
| 34 | private String[] parameters; | |
| 35 | ||
| 36 | /** | |
| 37 | * Construct a new immutable instance with the specified command name and parameters | |
| 38 | * | |
| 39 | * @param name - the command name; may not be null | |
| 40 | * @param parameters - the command parameters; may be empty; may not be null | |
| 41 | */ | |
| 42 | 911 | public Command(String name, String[] parameters) { |
| 43 | 911 | Assert.notNull(name, "name"); |
| 44 | 910 | Assert.notNull(parameters, "parameters"); |
| 45 | 909 | this.name = name; |
| 46 | 909 | this.parameters = copy(parameters); |
| 47 | 909 | } |
| 48 | ||
| 49 | /** | |
| 50 | * Construct a new immutable instance with the specified command name and parameters | |
| 51 | * | |
| 52 | * @param name - the command name; may not be null | |
| 53 | * @param parameters - the command parameters; may be empty; may not be null | |
| 54 | */ | |
| 55 | public Command(String name, List parameters) { | |
| 56 | 402 | this(name, (String[]) parameters.toArray(new String[parameters.size()])); |
| 57 | 402 | } |
| 58 | ||
| 59 | /** | |
| 60 | * @return the name | |
| 61 | */ | |
| 62 | public String getName() { | |
| 63 | 422 | return name; |
| 64 | } | |
| 65 | ||
| 66 | /** | |
| 67 | * @return the parameters | |
| 68 | */ | |
| 69 | public String[] getParameters() { | |
| 70 | 45 | return copy(parameters); |
| 71 | } | |
| 72 | ||
| 73 | /** | |
| 74 | * Get the String value of the parameter at the specified index | |
| 75 | * | |
| 76 | * @param index - the index | |
| 77 | * @return the parameter value as a String | |
| 78 | * @throws org.mockftpserver.core.util.AssertFailedException | |
| 79 | * if the parameter index is invalid or the value is not a valid String | |
| 80 | */ | |
| 81 | public String getRequiredParameter(int index) { | |
| 82 | 306 | assertValidIndex(index); |
| 83 | 270 | return parameters[index]; |
| 84 | } | |
| 85 | ||
| 86 | /** | |
| 87 | * Get the String value of the parameter at the specified index; return null if no parameter exists for the index | |
| 88 | * | |
| 89 | * @param index - the index | |
| 90 | * @return the parameter value as a String, or null if this Command does not have a parameter for that index | |
| 91 | */ | |
| 92 | public String getParameter(int index) { | |
| 93 | 55 | return (parameters.length > index) ? parameters[index] : null; |
| 94 | } | |
| 95 | ||
| 96 | /** | |
| 97 | * Get the String value of the parameter at the specified index; return null if no | |
| 98 | * parameter exists for the index. This is an alias for {@link #getParameter(int)}. | |
| 99 | * | |
| 100 | * @param index - the index | |
| 101 | * @return the parameter value as a String, or null if this Command does not have a parameter for that index | |
| 102 | */ | |
| 103 | public String getOptionalString(int index) { | |
| 104 | 30 | return getParameter(index); |
| 105 | } | |
| 106 | ||
| 107 | /** | |
| 108 | * @see java.lang.Object#equals(java.lang.Object) | |
| 109 | */ | |
| 110 | public boolean equals(Object obj) { | |
| 111 | 16 | if (this == obj) { |
| 112 | 9 | return true; |
| 113 | } | |
| 114 | 7 | if (obj == null || !(obj instanceof Command)) { |
| 115 | 1 | return false; |
| 116 | } | |
| 117 | 6 | return this.hashCode() == obj.hashCode(); |
| 118 | } | |
| 119 | ||
| 120 | /** | |
| 121 | * @see java.lang.Object#hashCode() | |
| 122 | */ | |
| 123 | public int hashCode() { | |
| 124 | 12 | String str = name + Arrays.asList(parameters); |
| 125 | 12 | return str.hashCode(); |
| 126 | } | |
| 127 | ||
| 128 | /** | |
| 129 | * Return the String representation of this object | |
| 130 | * | |
| 131 | * @see java.lang.Object#toString() | |
| 132 | */ | |
| 133 | public String toString() { | |
| 134 | 247 | return "Command[" + name + ":" + Arrays.asList(parameters) + "]"; |
| 135 | } | |
| 136 | ||
| 137 | /** | |
| 138 | * Return the name, normalized to a common format - convert to upper case. | |
| 139 | * | |
| 140 | * @return the name converted to upper case | |
| 141 | */ | |
| 142 | public static String normalizeName(String name) { | |
| 143 | 5260 | return name.toUpperCase(); |
| 144 | } | |
| 145 | ||
| 146 | /** | |
| 147 | * Construct a shallow copy of the specified array | |
| 148 | * | |
| 149 | * @param array - the array to copy | |
| 150 | * @return a new array with the same contents | |
| 151 | */ | |
| 152 | private static String[] copy(String[] array) { | |
| 153 | 954 | String[] newArray = new String[array.length]; |
| 154 | 954 | System.arraycopy(array, 0, newArray, 0, array.length); |
| 155 | 954 | return newArray; |
| 156 | } | |
| 157 | ||
| 158 | /** | |
| 159 | * Assert that the index is valid | |
| 160 | * | |
| 161 | * @param index - the index | |
| 162 | * @throws org.mockftpserver.core.CommandSyntaxException | |
| 163 | * - if the parameter index is invalid | |
| 164 | */ | |
| 165 | private void assertValidIndex(int index) { | |
| 166 | 306 | if (index < 0 || index >= parameters.length) { |
| 167 | 36 | throw new CommandSyntaxException("The parameter index " + index + " is not valid for " + this); |
| 168 | } | |
| 169 | 270 | } |
| 170 | ||
| 171 | } |