| 1 | /** |
| 2 | * Licensed to jclouds, Inc. (jclouds) under one or more |
| 3 | * contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. jclouds licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.jclouds.io; |
| 20 | |
| 21 | import static com.google.common.collect.Iterables.any; |
| 22 | import static javax.ws.rs.core.HttpHeaders.CONTENT_LENGTH; |
| 23 | import static javax.ws.rs.core.HttpHeaders.CONTENT_TYPE; |
| 24 | |
| 25 | import java.io.Serializable; |
| 26 | import java.util.Arrays; |
| 27 | import java.util.Map.Entry; |
| 28 | |
| 29 | import org.jclouds.javax.annotation.Nullable; |
| 30 | |
| 31 | import org.jclouds.crypto.CryptoStreams; |
| 32 | import org.jclouds.io.payloads.BaseImmutableContentMetadata; |
| 33 | |
| 34 | import com.google.common.base.Predicate; |
| 35 | import com.google.common.collect.Multimap; |
| 36 | |
| 37 | /** |
| 38 | * @author Adrian Cole |
| 39 | */ |
| 40 | public class ContentMetadataBuilder implements Serializable { |
| 41 | /** The serialVersionUID */ |
| 42 | private static final long serialVersionUID = -5279643002875371558L; |
| 43 | |
| 44 | public static ContentMetadataBuilder create() { |
| 45 | return new ContentMetadataBuilder(); |
| 46 | } |
| 47 | |
| 48 | protected String contentType = "application/unknown"; |
| 49 | protected Long contentLength; |
| 50 | protected byte[] contentMD5; |
| 51 | protected String contentDisposition; |
| 52 | protected String contentLanguage; |
| 53 | protected String contentEncoding; |
| 54 | |
| 55 | public ContentMetadataBuilder fromHttpHeaders(Multimap<String, String> headers) { |
| 56 | boolean chunked = any(headers.entries(), new Predicate<Entry<String, String>>() { |
| 57 | @Override |
| 58 | public boolean apply(Entry<String, String> input) { |
| 59 | return "Transfer-Encoding".equalsIgnoreCase(input.getKey()) && "chunked".equalsIgnoreCase(input.getValue()); |
| 60 | } |
| 61 | }); |
| 62 | for (Entry<String, String> header : headers.entries()) { |
| 63 | if (!chunked && CONTENT_LENGTH.equalsIgnoreCase(header.getKey())) { |
| 64 | contentLength(new Long(header.getValue())); |
| 65 | } else if ("Content-MD5".equalsIgnoreCase(header.getKey())) { |
| 66 | contentMD5(CryptoStreams.base64(header.getValue())); |
| 67 | } else if (CONTENT_TYPE.equalsIgnoreCase(header.getKey())) { |
| 68 | contentType(header.getValue()); |
| 69 | } else if ("Content-Disposition".equalsIgnoreCase(header.getKey())) { |
| 70 | contentDisposition(header.getValue()); |
| 71 | } else if ("Content-Encoding".equalsIgnoreCase(header.getKey())) { |
| 72 | contentEncoding(header.getValue()); |
| 73 | } else if ("Content-Language".equalsIgnoreCase(header.getKey())) { |
| 74 | contentLanguage(header.getValue()); |
| 75 | } |
| 76 | } |
| 77 | return this; |
| 78 | } |
| 79 | |
| 80 | public ContentMetadataBuilder contentLength(@Nullable Long contentLength) { |
| 81 | this.contentLength = contentLength; |
| 82 | return this; |
| 83 | } |
| 84 | |
| 85 | public ContentMetadataBuilder contentMD5(byte[] md5) { |
| 86 | if (md5 != null) { |
| 87 | byte[] retval = new byte[md5.length]; |
| 88 | System.arraycopy(md5, 0, retval, 0, md5.length); |
| 89 | this.contentMD5 = md5; |
| 90 | } |
| 91 | return this; |
| 92 | |
| 93 | } |
| 94 | |
| 95 | public ContentMetadataBuilder contentType(@Nullable String contentType) { |
| 96 | this.contentType = contentType; |
| 97 | return this; |
| 98 | } |
| 99 | |
| 100 | public ContentMetadataBuilder contentDisposition(@Nullable String contentDisposition) { |
| 101 | this.contentDisposition = contentDisposition; |
| 102 | return this; |
| 103 | |
| 104 | } |
| 105 | |
| 106 | public ContentMetadataBuilder contentLanguage(@Nullable String contentLanguage) { |
| 107 | this.contentLanguage = contentLanguage; |
| 108 | return this; |
| 109 | } |
| 110 | |
| 111 | public ContentMetadataBuilder contentEncoding(@Nullable String contentEncoding) { |
| 112 | this.contentEncoding = contentEncoding; |
| 113 | return this; |
| 114 | } |
| 115 | |
| 116 | public ContentMetadata build() { |
| 117 | return new BaseImmutableContentMetadata(contentType, contentLength, contentMD5, contentDisposition, |
| 118 | contentLanguage, contentEncoding); |
| 119 | } |
| 120 | |
| 121 | public static ContentMetadataBuilder fromContentMetadata(ContentMetadata in) { |
| 122 | return new ContentMetadataBuilder().contentType(in.getContentType()).contentLength(in.getContentLength()) |
| 123 | .contentMD5(in.getContentMD5()).contentDisposition(in.getContentDisposition()).contentLanguage( |
| 124 | in.getContentLanguage()).contentEncoding(in.getContentEncoding()); |
| 125 | } |
| 126 | |
| 127 | @Override |
| 128 | public int hashCode() { |
| 129 | final int prime = 31; |
| 130 | int result = 1; |
| 131 | result = prime * result + ((contentDisposition == null) ? 0 : contentDisposition.hashCode()); |
| 132 | result = prime * result + ((contentEncoding == null) ? 0 : contentEncoding.hashCode()); |
| 133 | result = prime * result + ((contentLanguage == null) ? 0 : contentLanguage.hashCode()); |
| 134 | result = prime * result + ((contentLength == null) ? 0 : contentLength.hashCode()); |
| 135 | result = prime * result + Arrays.hashCode(contentMD5); |
| 136 | result = prime * result + ((contentType == null) ? 0 : contentType.hashCode()); |
| 137 | return result; |
| 138 | } |
| 139 | |
| 140 | @Override |
| 141 | public boolean equals(Object obj) { |
| 142 | if (this == obj) |
| 143 | return true; |
| 144 | if (obj == null) |
| 145 | return false; |
| 146 | if (getClass() != obj.getClass()) |
| 147 | return false; |
| 148 | ContentMetadataBuilder other = (ContentMetadataBuilder) obj; |
| 149 | if (contentDisposition == null) { |
| 150 | if (other.contentDisposition != null) |
| 151 | return false; |
| 152 | } else if (!contentDisposition.equals(other.contentDisposition)) |
| 153 | return false; |
| 154 | if (contentEncoding == null) { |
| 155 | if (other.contentEncoding != null) |
| 156 | return false; |
| 157 | } else if (!contentEncoding.equals(other.contentEncoding)) |
| 158 | return false; |
| 159 | if (contentLanguage == null) { |
| 160 | if (other.contentLanguage != null) |
| 161 | return false; |
| 162 | } else if (!contentLanguage.equals(other.contentLanguage)) |
| 163 | return false; |
| 164 | if (contentLength == null) { |
| 165 | if (other.contentLength != null) |
| 166 | return false; |
| 167 | } else if (!contentLength.equals(other.contentLength)) |
| 168 | return false; |
| 169 | if (!Arrays.equals(contentMD5, other.contentMD5)) |
| 170 | return false; |
| 171 | if (contentType == null) { |
| 172 | if (other.contentType != null) |
| 173 | return false; |
| 174 | } else if (!contentType.equals(other.contentType)) |
| 175 | return false; |
| 176 | return true; |
| 177 | } |
| 178 | |
| 179 | @Override |
| 180 | public String toString() { |
| 181 | return "[contentDisposition=" + contentDisposition + ", contentEncoding=" + contentEncoding |
| 182 | + ", contentLanguage=" + contentLanguage + ", contentLength=" + contentLength + ", contentMD5=" |
| 183 | + Arrays.toString(contentMD5) + ", contentType=" + contentType + "]"; |
| 184 | } |
| 185 | } |