Example usage for org.apache.commons.vfs2 FileContent getAttribute

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileContent getAttribute.

Prototype

Object getAttribute(String attrName) throws FileSystemException;

Source Link

Document

Gets the value of an attribute of the file's content.

Usage

From source file:org.pentaho.reporting.designer.extensions.pentaho.drilldown.PentahoParameterRefreshHandler.java

private static String getParameterServicePath(final AuthenticationData loginData,
        final PentahoPathModel pathModel) {
    try {//from   w ww  .j a v a2s .  c  om
        final FileObject fileSystemRoot = PublishUtil.createVFSConnection(VFS.getManager(), loginData);
        final FileSystem fileSystem = fileSystemRoot.getFileSystem();

        // as of version 3.7 we do not need to check anything other than that the version information is there
        // later we may have to add additional checks in here to filter out known broken versions.

        final String localPath = pathModel.getLocalPath();
        final FileObject object = fileSystemRoot.resolveFile(localPath);
        final FileContent content = object.getContent();
        final String majorVersionText = (String) fileSystem.getAttribute(WebSolutionFileSystem.MAJOR_VERSION);

        if (StringUtils.isEmpty(majorVersionText) == false) {
            final String paramService = (String) content.getAttribute("param-service-url");
            if (StringUtils.isEmpty(paramService)) {
                return null;
            }
            if (paramService.startsWith("http://") || paramService.startsWith("https://")) {
                return paramService;
            }

            try {
                // Encode the URL (must use URI as URL encoding doesn't work on spaces correctly)
                final URL target = new URL(loginData.getUrl());
                final String host;
                if (target.getPort() != -1) {
                    host = target.getHost() + ":" + target.getPort();
                } else {
                    host = target.getHost();
                }

                return target.getProtocol() + "://" + host + paramService;
            } catch (MalformedURLException e) {
                UncaughtExceptionsModel.getInstance().addException(e);
                return null;
            }
        }

        final String extension = IOUtils.getInstance().getFileExtension(localPath);
        if (".prpt".equals(extension)) {
            logger.debug(
                    "Ancient pentaho system detected: parameter service does not deliver valid parameter values");

            final String name = pathModel.getName();
            final String path = pathModel.getPath();
            final String solution = pathModel.getSolution();

            final FastMessageFormat messageFormat = new FastMessageFormat(
                    "/content/reporting/?renderMode=XML&solution={0}&path={1}&name={2}");
            messageFormat.setNullString("");
            return loginData.getUrl() + messageFormat.format(new Object[] { solution, path, name });
        }

        logger.debug("Ancient pentaho system detected: We will not have access to a working parameter service");
        return null;
    } catch (FileSystemException e) {
        UncaughtExceptionsModel.getInstance().addException(e);
        return null;
    }
}

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