Marc De Leenheer | 57a5af0 | 2016-12-02 20:54:41 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Laboratory |
| 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.onosproject.tl1.impl; |
| 17 | |
| 18 | import org.onosproject.tl1.Tl1Command; |
| 19 | |
| 20 | import java.util.Optional; |
| 21 | |
| 22 | import static com.google.common.base.Preconditions.checkArgument; |
| 23 | import static com.google.common.base.Preconditions.checkNotNull; |
| 24 | |
| 25 | /** |
| 26 | * Default implementation of a TL1 command. |
| 27 | */ |
| 28 | public final class DefaultTl1Command implements Tl1Command { |
| 29 | private static final char HYPHEN = '-'; |
| 30 | private static final char COLON = ':'; |
| 31 | private static final char SEMICOLON = ';'; |
| 32 | |
| 33 | private String verb; |
| 34 | private String modifier; |
| 35 | private Optional<String> tid; |
| 36 | private String aid; |
| 37 | private int ctag; |
| 38 | private String parameters; |
| 39 | |
| 40 | private DefaultTl1Command(String verb, String modifier, String tid, String aid, int ctag, String parameters) { |
| 41 | this.verb = verb; |
| 42 | this.modifier = modifier; |
| 43 | this.tid = Optional.ofNullable(tid); |
| 44 | this.aid = aid; |
| 45 | this.ctag = ctag; |
| 46 | this.parameters = parameters; |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public String verb() { |
| 51 | return verb; |
| 52 | } |
| 53 | |
| 54 | @Override |
| 55 | public String modifier() { |
| 56 | return modifier; |
| 57 | } |
| 58 | |
| 59 | @Override |
| 60 | public Optional<String> tid() { |
| 61 | return tid; |
| 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public Optional<String> aid() { |
| 66 | return Optional.ofNullable(aid); |
| 67 | } |
| 68 | |
| 69 | @Override |
| 70 | public int ctag() { |
| 71 | return ctag; |
| 72 | } |
| 73 | |
| 74 | @Override |
| 75 | public Optional<String> parameters() { |
| 76 | return Optional.ofNullable(parameters); |
| 77 | } |
| 78 | |
| 79 | @Override |
| 80 | public String toString() { |
| 81 | StringBuilder sb = new StringBuilder() |
| 82 | .append(verb).append(HYPHEN) |
| 83 | .append(modifier).append(COLON) |
| 84 | .append(tid().orElse("")).append(COLON) |
| 85 | .append(aid().orElse("")).append(COLON) |
| 86 | .append(ctag); |
| 87 | |
| 88 | if (parameters().isPresent()) { |
| 89 | sb.append(COLON).append(COLON).append(parameters); |
| 90 | } |
| 91 | |
| 92 | return sb.append(SEMICOLON).toString(); |
| 93 | } |
| 94 | |
| 95 | public static Builder builder() { |
| 96 | return new Builder(); |
| 97 | } |
| 98 | |
| 99 | public static final class Builder implements Tl1Command.Builder { |
| 100 | private String verb; |
| 101 | private String modifier; |
| 102 | private String tid; |
| 103 | private String aid; |
| 104 | private int ctag; |
| 105 | private String parameters; |
| 106 | |
| 107 | @Override |
| 108 | public Tl1Command.Builder withVerb(String verb) { |
| 109 | this.verb = verb; |
| 110 | return this; |
| 111 | } |
| 112 | |
| 113 | @Override |
| 114 | public Tl1Command.Builder withModifier(String modifier) { |
| 115 | this.modifier = modifier; |
| 116 | return this; |
| 117 | } |
| 118 | |
| 119 | @Override |
| 120 | public Tl1Command.Builder forTid(String tid) { |
| 121 | this.tid = tid; |
| 122 | return this; |
| 123 | } |
| 124 | |
| 125 | @Override |
| 126 | public Tl1Command.Builder withAid(String aid) { |
| 127 | this.aid = aid; |
| 128 | return this; |
| 129 | } |
| 130 | |
| 131 | @Override |
| 132 | public Tl1Command.Builder withCtag(int ctag) { |
| 133 | this.ctag = ctag; |
| 134 | return this; |
| 135 | } |
| 136 | |
| 137 | @Override |
| 138 | public Tl1Command.Builder withParameters(String parameters) { |
| 139 | this.parameters = parameters; |
| 140 | return this; |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public Tl1Command build() { |
| 145 | checkNotNull(verb, "Must supply a verb"); |
| 146 | checkNotNull(modifier, "Must supply a modifier"); |
| 147 | |
| 148 | checkArgument(MIN_CTAG < ctag, "ctag cannot be less than " + MIN_CTAG); |
| 149 | checkArgument(ctag <= MAX_CTAG, "ctag cannot be larger than " + MAX_CTAG); |
| 150 | |
| 151 | return new DefaultTl1Command(verb, modifier, tid, aid, ctag, parameters); |
| 152 | } |
| 153 | } |
| 154 | } |