Example usage for org.apache.commons.vfs2.provider.url UrlFileNameParser parseUri

Introduction

In this page you can find the example usage for org.apache.commons.vfs2.provider.url UrlFileNameParser parseUri.

Prototype

@Override
public FileName parseUri(final VfsComponentContext context, final FileName base, final String uri)
        throws FileSystemException 

Source Link

Document

Parse a URI.

Usage

From source file:org.pentaho.big.data.impl.cluster.NamedClusterImpl.java

private String processURLsubstitution(String incomingURL, String hdfsScheme, IMetaStore metastore,
        VariableSpace variableSpace) {//w  w  w. j  av a  2 s.c  om

    String outgoingURL = null;
    String clusterURL = null;
    if (!hdfsScheme.equals(MAPRFS_SCHEME)) {
        clusterURL = generateURL(hdfsScheme, metastore, variableSpace);
    }
    try {
        if (clusterURL == null || isHdfsHostEmpty(variableSpace)) {
            outgoingURL = incomingURL;
        } else if (incomingURL.equals("/")) {
            outgoingURL = clusterURL;
        } else if (clusterURL != null) {
            String noVariablesURL = incomingURL.replaceAll("[${}]", "/");

            String fullyQualifiedIncomingURL = incomingURL;
            if (!incomingURL.startsWith(hdfsScheme) && !incomingURL.startsWith(NC_SCHEME)) {
                fullyQualifiedIncomingURL = clusterURL + incomingURL;
                noVariablesURL = clusterURL + incomingURL.replaceAll("[${}]", "/");
            }

            UrlFileNameParser parser = new UrlFileNameParser();
            FileName fileName = parser.parseUri(null, null, noVariablesURL);
            String root = fileName.getRootURI();
            String path = fullyQualifiedIncomingURL.substring(root.length() - 1);
            StringBuffer buffer = new StringBuffer();
            // Check for a special case where a fully qualified path (one that has the protocol in it).
            // This can only happen through variable replacement. See BACKLOG-15849. When this scenario
            // occurs we do not prepend the cluster uri to the url.
            boolean prependCluster = true;
            if (variableSpace != null) {
                String filePath = variableSpace.environmentSubstitute(path);
                StringBuilder pattern = new StringBuilder();
                pattern.append("^(").append(HDFS_SCHEME).append("|").append(WASB_SCHEME).append("|")
                        .append(MAPRFS_SCHEME).append("|").append(NC_SCHEME).append("):\\/\\/");
                Pattern r = Pattern.compile(pattern.toString());
                Matcher m = r.matcher(filePath);
                prependCluster = !m.find();
            }
            if (prependCluster) {
                buffer.append(clusterURL);
            }
            buffer.append(path);
            outgoingURL = buffer.toString();
        }
    } catch (Exception e) {
        outgoingURL = null;
    }
    return outgoingURL;
}

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From source file:org.pentaho.di.core.namedcluster.NamedClusterManager.java

/**
 * This method performs the root URL substitution with the URL of the specified NamedCluster
 *
 * @param clusterName//from  ww w  .  ja  va 2s .co  m
 *          the NamedCluster to use to generate the URL for the substitution
 * @param incomingURL
 *          the URL whose root will be replaced
 * @param scheme
 *          the scheme to be used to generate the URL of the specified NamedCluster
 * @return the generated URL or the incoming URL if an error occurs
 */
public String processURLsubstitution(String clusterName, String incomingURL, String scheme,
        IMetaStore metastore, VariableSpace variableSpace) {
    String outgoingURL = null;
    String clusterURL = null;
    if (!scheme.equals(NamedCluster.MAPRFS_SCHEME)) {
        clusterURL = generateURL(scheme, clusterName, metastore, variableSpace);
    }
    try {
        if (clusterURL == null) {
            outgoingURL = incomingURL;
        } else if (incomingURL.equals("/")) {
            outgoingURL = clusterURL;
        } else if (clusterURL != null) {
            String noVariablesURL = incomingURL.replaceAll("[${}]", "/");

            String fullyQualifiedIncomingURL = incomingURL;
            if (!incomingURL.startsWith(scheme)) {
                fullyQualifiedIncomingURL = clusterURL + incomingURL;
                noVariablesURL = clusterURL + incomingURL.replaceAll("[${}]", "/");
            }

            UrlFileNameParser parser = new UrlFileNameParser();
            FileName fileName = parser.parseUri(null, null, noVariablesURL);
            String root = fileName.getRootURI();
            String path = fullyQualifiedIncomingURL.substring(root.length() - 1);
            StringBuffer buffer = new StringBuffer();
            buffer.append(clusterURL);
            buffer.append(path);
            outgoingURL = buffer.toString();
        }
    } catch (Exception e) {
        outgoingURL = null;
    }
    return outgoingURL;
}

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