org.mule.ibeans.internal.config.IBeansInfo.java Source code

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Here is the source code for org.mule.ibeans.internal.config.IBeansInfo.java

Source

package org.mule.ibeans.internal.config;

import org.mule.api.config.MuleConfiguration;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Enumeration;
import java.util.jar.Attributes;
import java.util.jar.Manifest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class IBeansInfo {
    /**
     * logger used by this class
     */
    protected static transient final Log logger = LogFactory.getLog(IBeansInfo.class);

    private static Manifest manifest;

    public static String getProductVersion() {
        return getManifestProperty("Implementation-Version");
    }

    public static String getVendorName() {
        return getManifestProperty("Implementation-Vendor");
    }

    public static String getVendorUrl() {
        return getManifestProperty("Implementation-Vendor-Url");
    }

    public static String getProductUrl() {
        return getManifestProperty("Implementation-Url");
    }

    public static String getProductName() {
        return getManifestProperty("Implementation-Title");
    }

    public static String getProductMoreInfo() {
        return getManifestProperty("More-Info");
    }

    public static String getProductSupport() {
        return getManifestProperty("Support");
    }

    public static String getProductLicenseInfo() {
        return getManifestProperty("License-Title");
    }

    public static String getProductDescription() {
        return getManifestProperty("Product-Description");
    }

    public static String getBuildNumber() {
        return getManifestProperty("Build-Revision");
    }

    public static String getBuildDate() {
        return getManifestProperty("Build-Date");
    }

    public static String getDevListEmail() {
        return getManifestProperty("Dev-List-Email");
    }

    public static Manifest getManifest() {
        if (manifest == null) {
            manifest = new Manifest();

            InputStream is = null;
            try {
                // We want to load the MANIFEST.MF from the mule-core jar. Sine we
                // don't know the version we're using we have to search for the jar on the classpath
                URL url = AccessController.doPrivileged(new PrivilegedAction<URL>() {
                    public URL run() {
                        try {
                            Enumeration e = MuleConfiguration.class.getClassLoader()
                                    .getResources(("META-INF/MANIFEST.MF"));
                            while (e.hasMoreElements()) {
                                URL url = (URL) e.nextElement();
                                if ((url.toExternalForm().indexOf("ibeans-core") > -1
                                        && url.toExternalForm().indexOf("tests.jar") < 0)) {
                                    return url;
                                }
                            }
                        } catch (IOException e1) {
                            logger.warn("Failure reading manifest: " + e1.getMessage(), e1);
                        }
                        return null;
                    }
                });

                if (url != null) {
                    is = url.openStream();
                }

                if (is != null) {
                    manifest.read(is);
                }
            } catch (IOException e) {
                logger.warn("Failed to read manifest Info, Manifest information will not display correctly: "
                        + e.getMessage());
            }
        }
        return manifest;
    }

    protected static String getManifestProperty(String name) {
        return getManifest().getMainAttributes().getValue(new Attributes.Name(name));
    }
}