Examples with Resource org.apache.zeppelin.resource.Resource used on opensource projects

Example 16 with Resource

use of org.apache.zeppelin.resource.Resource in project zeppelin by apache.

the class ApplicationLoader method findRequiredResourceSet.

static ResourceSet findRequiredResourceSet(String[][] requiredResources, String noteId, String paragraphId, ResourceSet resources) {
    ResourceSet args = new ResourceSet();
    if (requiredResources == null || requiredResources.length == 0) {
        return args;
    }
    resources = resources.filterByNoteId(noteId).filterByParagraphId(paragraphId);
    for (String[] requires : requiredResources) {
        args.clear();
        for (String require : requires) {
            boolean found = false;
            for (Resource r : resources) {
                if (require.startsWith(":") && r.getClassName().equals(require.substring(1))) {
                    found = true;
                } else if (r.getResourceId().getName().equals(require)) {
                    found = true;
                }
                if (found) {
                    args.add(r);
                    break;
                }
            }
            if (found == false) {
                break;
            }
        }
        if (args.size() == requires.length) {
            return args;
        }
    }
    return null;
}

Example 17 with Resource

use of org.apache.zeppelin.resource.Resource in project zeppelin by apache.

the class AbstractInterpreter method interpolate.

static String interpolate(String cmd, ResourcePool resourcePool) {
    StringBuilder sb = new StringBuilder();
    Matcher m;
    String st = cmd;
    while ((m = VARIABLES.matcher(st)).matches()) {
        sb.append(m.group(1));
        String varPat = m.group(2);
        if (VARIABLE_IN_BRACES.matcher(varPat).matches()) {
            // substitute {variable} only if 'variable' has a value ...
            Resource resource = resourcePool.get(varPat.substring(1, varPat.length() - 1));
            Object variableValue = resource == null ? null : resource.get();
            if (variableValue != null)
                sb.append(variableValue);
            else
                return cmd;
        } else if (VARIABLE_IN_DOUBLE_BRACES.matcher(varPat).matches()) {
            // escape {{text}} ...
            sb.append("{").append(varPat, 2, varPat.length() - 2).append("}");
        } else {
            // mismatched {{ }} or more than 2 braces ...
            return cmd;
        }
        st = m.group(3);
    }
    sb.append(st);
    return sb.toString();
}

Example 18 with Resource

use of org.apache.zeppelin.resource.Resource in project zeppelin by apache.

the class ZeppelinContext method get.

/**
 * Get object from resource pool
 * Search local process first and then the other processes
 *
 * @param name
 * @param clazz  The class of the returned value
 * @return null if resource not found
 */
@ZeppelinApi
public <T> T get(String name, Class<T> clazz) {
    ResourcePool resourcePool = interpreterContext.getResourcePool();
    Resource resource = resourcePool.get(name);
    if (resource != null) {
        return resource.get(clazz);
    } else {
        return null;
    }
}

Example 19 with Resource

use of org.apache.zeppelin.resource.Resource in project zeppelin by apache.

the class ZeppelinContext method get.

/**
 * Get object from resource pool
 * Search local process first and then the other processes
 *
 * @param name
 * @return null if resource not found
 */
@ZeppelinApi
public Object get(String name) {
    ResourcePool resourcePool = interpreterContext.getResourcePool();
    Resource resource = resourcePool.get(name);
    if (resource != null) {
        return resource.get();
    } else {
        return null;
    }
}

Example 20 with Resource

use of org.apache.zeppelin.resource.Resource in project zeppelin by apache.

the class RemoteInterpreterEventClient method invokeMethod.

/**
 * Invoke method and save result in resourcePool as another resource
 *
 * @param resourceId
 * @param methodName
 * @param paramTypes
 * @param params
 * @param returnResourceName
 * @return
 */
@Override
public Resource invokeMethod(ResourceId resourceId, String methodName, Class[] paramTypes, Object[] params, String returnResourceName) {
    LOGGER.debug("Request Invoke method {} of Resource {}", methodName, resourceId.getName());
    InvokeResourceMethodEventMessage invokeMethod = new InvokeResourceMethodEventMessage(resourceId, methodName, paramTypes, params, returnResourceName);
    try {
        ByteBuffer serializedResource = callRemoteFunction(client -> client.invokeMethod(intpGroupId, invokeMethod.toJson()));
        Resource deserializedResource = (Resource) Resource.deserializeObject(serializedResource);
        RemoteResource remoteResource = RemoteResource.fromJson(GSON.toJson(deserializedResource));
        remoteResource.setResourcePoolConnector(this);
        return remoteResource;
    } catch (IOException | ClassNotFoundException e) {
        LOGGER.error("Failed to invoke method", e);
        return null;
    }
}