| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2007, 2009 IBM Corporation and others. |
| 3 | * All rights reserved. This program and the accompanying materials |
| 4 | * are made available under the terms of the Eclipse Public License v1.0 |
| 5 | * which accompanies this distribution, and is available at |
| 6 | * http://www.eclipse.org/legal/epl-v10.html |
| 7 | * |
| 8 | * Contributors: |
| 9 | * IBM Corporation - initial API and implementation |
| 10 | *******************************************************************************/ |
| 11 | package org.eclipse.pde.api.tools.internal.model; |
| 12 | |
| 13 | import java.io.IOException; |
| 14 | import java.io.InputStream; |
| 15 | import java.util.ArrayList; |
| 16 | import java.util.Arrays; |
| 17 | import java.util.Collections; |
| 18 | import java.util.Enumeration; |
| 19 | import java.util.HashMap; |
| 20 | import java.util.HashSet; |
| 21 | import java.util.Iterator; |
| 22 | import java.util.List; |
| 23 | import java.util.Map; |
| 24 | import java.util.Set; |
| 25 | import java.util.zip.ZipEntry; |
| 26 | import java.util.zip.ZipFile; |
| 27 | |
| 28 | import org.eclipse.pde.api.tools.internal.provisional.ApiPlugin; |
| 29 | import org.eclipse.pde.api.tools.internal.provisional.model.ApiTypeContainerVisitor; |
| 30 | import org.eclipse.pde.api.tools.internal.provisional.model.IApiElement; |
| 31 | import org.eclipse.pde.api.tools.internal.provisional.model.IApiTypeContainer; |
| 32 | import org.eclipse.pde.api.tools.internal.provisional.model.IApiTypeRoot; |
| 33 | import org.eclipse.pde.api.tools.internal.util.Util; |
| 34 | |
| 35 | import org.eclipse.core.runtime.CoreException; |
| 36 | |
| 37 | /** |
| 38 | * {@link IApiTypeContainer} container for an archive (jar or zip) file. |
| 39 | * |
| 40 | * @since 1.0.0 |
| 41 | */ |
| 42 | public class ArchiveApiTypeContainer extends ApiElement implements IApiTypeContainer { |
| 43 | |
| 44 | /** |
| 45 | * {@link IApiTypeRoot} implementation within an archive |
| 46 | */ |
| 47 | static class ArchiveApiTypeRoot extends AbstractApiTypeRoot implements Comparable { |
| 48 | |
| 49 | private String fTypeName; |
| 50 | |
| 51 | /** |
| 52 | * Constructs a new handle to an {@link IApiTypeRoot} in the archive. |
| 53 | * |
| 54 | * @param container archive |
| 55 | * @param entryName zip entry name |
| 56 | */ |
| 57 | public ArchiveApiTypeRoot(ArchiveApiTypeContainer container, String entryName) { |
| 58 | super(container, entryName); |
| 59 | } |
| 60 | |
| 61 | /* (non-Javadoc) |
| 62 | * @see org.eclipse.pde.api.tools.manifest.IClassFile#getTypeName() |
| 63 | */ |
| 64 | public String getTypeName() { |
| 65 | if (fTypeName == null) { |
| 66 | fTypeName = getName().replace('/', '.').substring(0, getName().length() - Util.DOT_CLASS_SUFFIX.length()); |
| 67 | } |
| 68 | return fTypeName; |
| 69 | } |
| 70 | |
| 71 | /* (non-Javadoc) |
| 72 | * @see java.lang.Comparable#compareTo(java.lang.Object) |
| 73 | */ |
| 74 | public int compareTo(Object o) { |
| 75 | return getTypeName().compareTo(((ArchiveApiTypeRoot)o).getTypeName()); |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * @see java.lang.Object#equals(java.lang.Object) |
| 80 | */ |
| 81 | public boolean equals(Object obj) { |
| 82 | if (obj instanceof ArchiveApiTypeRoot) { |
| 83 | ArchiveApiTypeRoot classFile = (ArchiveApiTypeRoot) obj; |
| 84 | return this.getName().equals(classFile.getName()); |
| 85 | } |
| 86 | return false; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * @see java.lang.Object#hashCode() |
| 91 | */ |
| 92 | public int hashCode() { |
| 93 | return getName().hashCode(); |
| 94 | } |
| 95 | |
| 96 | /* (non-Javadoc) |
| 97 | * @see org.eclipse.pde.api.tools.internal.model.AbstractApiTypeRoot#getContents() |
| 98 | */ |
| 99 | public byte[] getContents() throws CoreException { |
| 100 | ArchiveApiTypeContainer archive = (ArchiveApiTypeContainer) getParent(); |
| 101 | ZipFile zipFile; |
| 102 | try { |
| 103 | zipFile= new ZipFile(archive.fLocation); |
| 104 | } catch (IOException e) { |
| 105 | abort("Failed to open archive: " + archive.fLocation, e); //$NON-NLS-1$ |
| 106 | return null; |
| 107 | } |
| 108 | try { |
| 109 | ZipEntry entry = zipFile.getEntry(getName()); |
| 110 | InputStream stream = null; |
| 111 | if (entry != null) { |
| 112 | try { |
| 113 | stream = zipFile.getInputStream(entry); |
| 114 | } catch (IOException e) { |
| 115 | abort("Failed to open class file: " + getTypeName() + " in archive: " + archive.fLocation, e); //$NON-NLS-1$ //$NON-NLS-2$ |
| 116 | return null; |
| 117 | } |
| 118 | try { |
| 119 | return Util.getInputStreamAsByteArray(stream, -1); |
| 120 | } |
| 121 | catch(IOException ioe) { |
| 122 | abort("Unable to read class file: " + getTypeName(), ioe); //$NON-NLS-1$ |
| 123 | return null; |
| 124 | } |
| 125 | finally { |
| 126 | try { |
| 127 | stream.close(); |
| 128 | } catch (IOException e) { |
| 129 | ApiPlugin.log(e); |
| 130 | } |
| 131 | } |
| 132 | } |
| 133 | } finally { |
| 134 | try { |
| 135 | zipFile.close(); |
| 136 | } catch (IOException e) { |
| 137 | abort("Failed to close class file archive", e); //$NON-NLS-1$ |
| 138 | } |
| 139 | } |
| 140 | abort("Class file not found: " + getTypeName() + " in archive: " + archive.fLocation, null); //$NON-NLS-1$ //$NON-NLS-2$ |
| 141 | return null; |
| 142 | } |
| 143 | |
| 144 | /* (non-Javadoc) |
| 145 | * @see java.lang.Object#toString() |
| 146 | */ |
| 147 | public String toString() { |
| 148 | return getTypeName(); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * Location of the archive in the local file system. |
| 154 | */ |
| 155 | String fLocation; |
| 156 | |
| 157 | /** |
| 158 | * Cache of package names to class file paths in that package, |
| 159 | * or <code>null</code> if not yet initialized. |
| 160 | */ |
| 161 | private Map fPackages; |
| 162 | |
| 163 | /** |
| 164 | * Cache of package names in this archive. |
| 165 | */ |
| 166 | private String[] fPackageNames; |
| 167 | |
| 168 | |
| 169 | /** |
| 170 | * Constructs an {@link IApiTypeContainer} container for the given jar or zip file |
| 171 | * at the specified location. |
| 172 | * |
| 173 | * @param parent the parent {@link IApiElement} or <code>null</code> if none |
| 174 | * @param path location of the file in the local file system |
| 175 | */ |
| 176 | public ArchiveApiTypeContainer(IApiElement parent, String path) { |
| 177 | super(parent, IApiElement.API_TYPE_CONTAINER, path); |
| 178 | this.fLocation = path; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * @see org.eclipse.pde.api.tools.internal.AbstractApiTypeContainer#accept(org.eclipse.pde.api.tools.internal.provisional.ApiTypeContainerVisitor) |
| 183 | */ |
| 184 | public void accept(ApiTypeContainerVisitor visitor) throws CoreException { |
| 185 | if(visitor.visit(this)) { |
| 186 | init(); |
| 187 | List packages = new ArrayList(fPackages.keySet()); |
| 188 | Collections.sort(packages); |
| 189 | Iterator iterator = packages.iterator(); |
| 190 | while (iterator.hasNext()) { |
| 191 | String pkg = (String) iterator.next(); |
| 192 | if (visitor.visitPackage(pkg)) { |
| 193 | List types = new ArrayList((Set) fPackages.get(pkg)); |
| 194 | Iterator cfIterator = types.iterator(); |
| 195 | List classFiles = new ArrayList(types.size()); |
| 196 | while (cfIterator.hasNext()) { |
| 197 | String entryName = (String) cfIterator.next(); |
| 198 | classFiles.add(new ArchiveApiTypeRoot(this, entryName)); |
| 199 | } |
| 200 | Collections.sort(classFiles); |
| 201 | cfIterator = classFiles.iterator(); |
| 202 | while (cfIterator.hasNext()) { |
| 203 | ArchiveApiTypeRoot classFile = (ArchiveApiTypeRoot) cfIterator.next(); |
| 204 | visitor.visit(pkg, classFile); |
| 205 | visitor.end(pkg, classFile); |
| 206 | } |
| 207 | } |
| 208 | visitor.endVisitPackage(pkg); |
| 209 | } |
| 210 | } |
| 211 | visitor.end(this); |
| 212 | } |
| 213 | |
| 214 | /** |
| 215 | * @see java.lang.Object#toString() |
| 216 | */ |
| 217 | public String toString() { |
| 218 | StringBuffer buff = new StringBuffer(); |
| 219 | buff.append("Archive Class File Container: "+getName()); //$NON-NLS-1$ |
| 220 | return buff.toString(); |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * @see org.eclipse.pde.api.tools.internal.AbstractApiTypeContainer#close() |
| 225 | */ |
| 226 | public synchronized void close() throws CoreException { |
| 227 | } |
| 228 | |
| 229 | /** |
| 230 | * @see org.eclipse.pde.api.tools.internal.provisional.IApiTypeContainer#findTypeRoot(java.lang.String) |
| 231 | */ |
| 232 | public IApiTypeRoot findTypeRoot(String qualifiedName) throws CoreException { |
| 233 | init(); |
| 234 | int index = qualifiedName.lastIndexOf('.'); |
| 235 | String packageName = Util.DEFAULT_PACKAGE_NAME; |
| 236 | if (index >= 0) { |
| 237 | packageName = qualifiedName.substring(0, index); |
| 238 | } |
| 239 | Set classFileNames = (Set) fPackages.get(packageName); |
| 240 | if (classFileNames != null) { |
| 241 | String fileName = qualifiedName.replace('.', '/') + Util.DOT_CLASS_SUFFIX; |
| 242 | if (classFileNames.contains(fileName)) { |
| 243 | return new ArchiveApiTypeRoot(this, fileName); |
| 244 | } |
| 245 | } |
| 246 | return null; |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * @see org.eclipse.pde.api.tools.internal.AbstractApiTypeContainer#getPackageNames() |
| 251 | */ |
| 252 | public String[] getPackageNames() throws CoreException { |
| 253 | init(); |
| 254 | synchronized (this) { |
| 255 | if (fPackageNames == null) { |
| 256 | Set names = fPackages.keySet(); |
| 257 | String[] result = new String[names.size()]; |
| 258 | names.toArray(result); |
| 259 | Arrays.sort(result); |
| 260 | fPackageNames = result; |
| 261 | } |
| 262 | return fPackageNames; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Initializes cache of packages and types. |
| 268 | * |
| 269 | * @throws CoreException |
| 270 | */ |
| 271 | private synchronized void init() throws CoreException { |
| 272 | if (fPackages == null) { |
| 273 | fPackages = new HashMap(); |
| 274 | ZipFile zipFile; |
| 275 | try { |
| 276 | zipFile= new ZipFile(fLocation); |
| 277 | } catch (IOException e) { |
| 278 | abort("Failed to open archive: " + fLocation, e); //$NON-NLS-1$ |
| 279 | return; |
| 280 | } |
| 281 | try { |
| 282 | Enumeration entries= zipFile.entries(); |
| 283 | while (entries.hasMoreElements()) { |
| 284 | ZipEntry entry= (ZipEntry)entries.nextElement(); |
| 285 | String name= entry.getName(); |
| 286 | if (name.endsWith(Util.DOT_CLASS_SUFFIX)) { |
| 287 | String pkg= Util.DEFAULT_PACKAGE_NAME; |
| 288 | int index= name.lastIndexOf('/'); |
| 289 | if (index >= 0) { |
| 290 | pkg= name.substring(0, index).replace('/', '.'); |
| 291 | } |
| 292 | Set fileNames= (Set)fPackages.get(pkg); |
| 293 | if (fileNames == null) { |
| 294 | fileNames= new HashSet(); |
| 295 | fPackages.put(pkg, fileNames); |
| 296 | } |
| 297 | fileNames.add(name); |
| 298 | } |
| 299 | } |
| 300 | } finally { |
| 301 | try { |
| 302 | zipFile.close(); |
| 303 | } catch (IOException e) { |
| 304 | abort("Failed to close class file archive", e); //$NON-NLS-1$ |
| 305 | } |
| 306 | } |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | |
| 311 | /* (non-Javadoc) |
| 312 | * @see java.lang.Object#equals(java.lang.Object) |
| 313 | */ |
| 314 | public boolean equals(Object obj) { |
| 315 | if (obj instanceof ArchiveApiTypeContainer) { |
| 316 | return this.fLocation.equals(((ArchiveApiTypeContainer) obj).fLocation); |
| 317 | } |
| 318 | return false; |
| 319 | } |
| 320 | /* (non-Javadoc) |
| 321 | * @see java.lang.Object#hashCode() |
| 322 | */ |
| 323 | public int hashCode() { |
| 324 | return this.fLocation.hashCode(); |
| 325 | } |
| 326 | |
| 327 | /** |
| 328 | * @see org.eclipse.pde.api.tools.internal.provisional.IApiTypeContainer#findTypeRoot(java.lang.String, java.lang.String) |
| 329 | */ |
| 330 | public IApiTypeRoot findTypeRoot(String qualifiedName, String id) throws CoreException { |
| 331 | return findTypeRoot(qualifiedName); |
| 332 | } |
| 333 | |
| 334 | /* (non-Javadoc) |
| 335 | * @see org.eclipse.pde.api.tools.internal.provisional.model.IApiTypeContainer#getContainerType() |
| 336 | */ |
| 337 | public int getContainerType() { |
| 338 | return ARCHIVE; |
| 339 | } |
| 340 | } |