Java BlobEntry类代码示例

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public BlobEntry createBlobEntry(String name) throws RepositoryException {
	// check for possible invalid name
	if (!RepositoryLocation.isNameValid(name)) {
		throw new RepositoryException(
				I18N.getMessage(I18N.getErrorBundle(), "repository.illegal_entry_name", name, getLocation()));
	}

	BlobEntry entry = null;
	acquireWriteLock();
	try {
		ensureLoaded();
		entry = new SimpleBlobEntry(name, this, getRepository());
		data.add(entry);
	} finally {
		releaseWriteLock();
	}
	if (entry != null) {
		getRepository().fireEntryAdded(entry, this);
	}
	return entry;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public BlobEntry createBlobEntry(String name) throws RepositoryException {
	// check for possible invalid name
	if (!RepositoryLocation.isNameValid(name)) {
		throw new RepositoryException(I18N.getMessage(I18N.getErrorBundle(), "repository.illegal_entry_name", name, getLocation()));
	}

	EntryResponse response = getRepository().getRepositoryService().createBlob(getPath(), name);
	RemoteBlobEntry newBlob = new RemoteBlobEntry(response, this, getRepository());
	if (this.entries != null) {
		entries.add(newBlob);
		Collections.sort(entries, nameComparator);
		getRepository().fireEntryAdded(newBlob, this);
	}
	return newBlob;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
protected ProgressThread getImportThread(final RepositoryLocation entryLocation, final Folder parent) {
	error = false;
	ProgressThread importWorker = new ProgressThread("import_data") {

		@Override
		public void run() {
			try {
				parent.createBlobEntry(entryLocation.getName());
				Entry newEntry = entryLocation.locateEntry();
				if (newEntry == null) {
					throw new RepositoryException("Creation of blob entry failed.");
				}
				BlobEntry blob = (BlobEntry) newEntry;
				try (FileInputStream fileInputStream = new FileInputStream(source.getLocation().toFile());
						OutputStream outputStream = blob.openOutputStream(getChooser().getMediaType())) {
					byte[] buffer = new byte[1024 * 20];
					int length;
					while ((length = fileInputStream.read(buffer)) != -1) {
						if (isCancelled()) {
							break;
						}
						outputStream.write(buffer, 0, length);
					}
					outputStream.flush();
				}
				if (isCancelled()) {
					blob.delete();
				}
			} catch (RepositoryException | IOException e) {
				error = true;
				SwingTools.showSimpleErrorMessage("import_blob_failed", e, e.getMessage());
			}
		}

	};
	importWorker.setIndeterminate(true);
	return importWorker;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public void save(BlobEntry entry) {
	try {
		save(entry.openOutputStream(LIBRARY_MIME_TYPE));
	} catch (RepositoryException e) {
		SwingTools.showSimpleErrorMessage("cannot_access_repository", e);
	}
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
/**
 * This method will load a library that has been stored into the given entry.
 * 
 */
public static OperatorLibrary loadLibrary(BlobEntry entry) throws Exception {
	Document document = XMLTools.parse(entry.openInputStream());
	String className = document.getDocumentElement().getAttribute(ATTRIBUTE_CLASS);

	Constructor<?> constructor = Class.forName(className, false, Plugin.getMajorClassLoader()).getConstructor(
			String.class, Element.class);
	return (OperatorLibrary) constructor.newInstance(entry.getLocation().getAbsoluteLocation(),
			document.getDocumentElement());

}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public BlobEntry createBlobEntry(String name) throws RepositoryException {
	// check for possible invalid name
	if (!RepositoryLocation.isNameValid(name)) {
		throw new RepositoryException(I18N.getMessage(I18N.getErrorBundle(), "repository.illegal_entry_name", name,
				getLocation()));
	}

	BlobEntry entry = new SimpleBlobEntry(name, this, getRepository());
	if (data != null) {
		data.add(entry);
	}
	getRepository().fireEntryAdded(entry, this);
	return entry;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
protected ProgressThread getImportThread(final RepositoryLocation entryLocation, final Folder parent) {
	error = false;
	ProgressThread importWorker = new ProgressThread("import_data") {

		@Override
		public void run() {
			try {
				parent.createBlobEntry(entryLocation.getName());
				Entry newEntry = entryLocation.locateEntry();
				if (newEntry == null) {
					throw new RepositoryException("Creation of blob entry failed.");
				}
				BlobEntry blob = (BlobEntry) newEntry;
				try (FileInputStream fileInputStream = new FileInputStream(source.getLocation().toFile());
						OutputStream outputStream = blob.openOutputStream(getChooser().getMediaType())) {
					byte[] buffer = new byte[1024 * 20];
					int length;
					while ((length = fileInputStream.read(buffer)) != -1) {
						if (isCancelled()) {
							break;
						}
						outputStream.write(buffer, 0, length);
					}
					outputStream.flush();
				}
				if (isCancelled()) {
					blob.delete();
				}
			} catch (RepositoryException | IOException e) {
				error = true;
				SwingTools.showSimpleErrorMessage(wizard.getDialog(), "import_blob_failed", e, e.getMessage());
			}
		}

	};
	importWorker.setIndeterminate(true);
	return importWorker;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public void save(BlobEntry entry) {
    try {
        save(entry.openOutputStream(LIBRARY_MIME_TYPE));
    } catch (RepositoryException e) {
        SwingTools.showSimpleErrorMessage("cannot_access_repository", e);
    }
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
/**
 * This method will load a library that has been stored into the
 * given entry.
 * 
 */
public static OperatorLibrary loadLibrary(BlobEntry entry) throws Exception {
    Document document = XMLTools.parse(entry.openInputStream());
    String className = document.getDocumentElement().getAttribute(ATTRIBUTE_CLASS);

    Constructor<?> constructor = Class.forName(className, false, Plugin.getMajorClassLoader()).getConstructor(String.class, Element.class);
    return (OperatorLibrary) constructor.newInstance(entry.getLocation().getAbsoluteLocation(), document.getDocumentElement());

}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public BlobEntry createBlobEntry(String name) throws RepositoryException {
	// check for possible invalid name
	if (!RepositoryLocation.isNameValid(name)) {
		throw new RepositoryException(I18N.getMessage(I18N.getErrorBundle(), "repository.illegal_entry_name", name, getLocation()));
	}
	
	BlobEntry entry = new SimpleBlobEntry(name, this, getRepository());
	if (data != null) {
		data.add(entry);
	}
	getRepository().fireEntryAdded(entry, this);
	return entry;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
/** Creates a new process operator without reference to an process. */
public ProcessRootOperator(OperatorDescription description) {
	this(description, null);
	getTransformer().addRuleAtBeginning(new MDTransformationRule() {

		@Override
		public void transformMD() {
			if (getProcess() == null) {
				// can happen during loading
				return;
			}
			ProcessContext context = getProcess().getContext();
			if (getProcess().getProcessState() == Process.PROCESS_STATE_STOPPED) {
				// We apply macros only if process is stopped so we dont break the process
				// in case we have a meta data propagation while process runs (in which
				// case it should be disabled anyway
				getProcess().applyContextMacros();
			}
			for (int i = 0; i < context.getInputRepositoryLocations().size(); i++) {
				String location = context.getInputRepositoryLocations().get(i);
				if (location != null && location.length() > 0) {
					if (i < getSubprocess(0).getInnerSources().getNumberOfPorts()) {
						OutputPort port = getSubprocess(0).getInnerSources().getPortByIndex(i);
						RepositoryLocation loc;
						try {
							loc = getProcess().resolveRepositoryLocation(location);
						} catch (Exception e1) {
							addError(new SimpleProcessSetupError(Severity.WARNING, getPortOwner(),
									"repository_access_error", location, e1.toString()));
							return;
						}
						try {
							Entry entry = loc.locateEntry();
							if (entry == null) {
								addError(new SimpleProcessSetupError(Severity.WARNING, getPortOwner(),
										"repository_location_does_not_exist", location));
							} else if (entry instanceof IOObjectEntry) {
								port.deliverMD(((IOObjectEntry) entry).retrieveMetaData());
							} else if (entry instanceof BlobEntry) {
								port.deliverMD(new MetaData(FileObject.class));
							} else {
								addError(new SimpleProcessSetupError(Severity.WARNING, getPortOwner(),
										"repository_location_wrong_type", location, entry.getType(), "IOObject"));
							}
						} catch (RepositoryException e) {
							addError(new SimpleProcessSetupError(Severity.WARNING, getPortOwner(),
									"repository_access_error", location, e.getMessage()));
						}
					}
				}
			}

		}
	});
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public String getType() {
	return BlobEntry.TYPE_NAME;
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
@Override
public BlobEntry createBlobEntry(String name) throws RepositoryException {
	throw new RepositoryException("This is a read-only sample repository. Cannot create new entries.");
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
/**
 * This method will show an Repository Entry chooser and returns the entry if the user has
 * chosen an unused entry or confirmed to overwrite the existing. Otherwise null is returned.
 */
public static BlobEntry selectBlobEntryForStoring() {
	String selectEntry = RepositoryLocationChooser.selectEntry(null, null, true);
	return createBlobEntry(selectEntry);
}
 

import com.rapidminer.repository.BlobEntry; //导入依赖的package包/类
/** Loads results from the repository if specified in the {@link ProcessContext}.
 * @param firstPort Specifies the first port which is read from the ProcessContext. This
 * 		enables the possibility to skip ports for which input is already specified via
 * 		the input parameter of the run() method.
 */
protected void loadInitialData(int firstPort) throws UserError {
	ProcessContext context = getContext();
	if (context.getInputRepositoryLocations().isEmpty()) {
		return;
	}
	getLogger().info("Loading initial data" + (firstPort > 0 ? " (starting at port " + (firstPort + 1) + ")" : "") + ".");
	for (int i = firstPort; i < context.getInputRepositoryLocations().size(); i++) {
		String location = context.getInputRepositoryLocations().get(i);
		if (location == null || location.length() == 0) {
			getLogger().fine("Input #" + (i + 1) + " not specified.");
		} else {
			if (i >= rootOperator.getSubprocess(0).getInnerSources().getNumberOfPorts()) {
				getLogger().warning("No input port available for process input #" + (i + 1) + ": " + location);
			} else {
				OutputPort port = rootOperator.getSubprocess(0).getInnerSources().getPortByIndex(i);
				RepositoryLocation loc;
				try {
					loc = resolveRepositoryLocation(location);
				} catch (MalformedRepositoryLocationException e1) {
					throw e1.makeUserError(rootOperator);
				}
				try {
					Entry entry = loc.locateEntry();
					if (entry == null) {
						throw new UserError(rootOperator, 312, loc, "Entry " + loc + " does not exist.");
					}
					if (entry instanceof IOObjectEntry) {
						getLogger().info("Assigning " + loc + " to input port " + port.getSpec() + ".");
						port.deliver(((IOObjectEntry) entry).retrieveData(null));
					} else if (entry instanceof BlobEntry) {
						getLogger().info("Assigning " + loc + " to input port " + port.getSpec() + ".");
						port.deliver(new RepositoryBlobObject(loc));
					} else {
						getLogger().info("Cannot assigning " + loc + " to input port " + port.getSpec() + ": Repository location does not reference an IOObject entry.");
						throw new UserError(rootOperator, 312, loc, "Not an IOObject entry.");
					}
				} catch (RepositoryException e) {
					throw new UserError(rootOperator, e, 312, loc, e.getMessage());
				}
			}
		}
	}
}