org.osgi.framework.Bundle.getHeaders()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中org.osgi.framework.Bundle.getHeaders()方法的一些代码示例，展示了Bundle.getHeaders()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Bundle.getHeaders()方法的具体详情如下：
包路径：org.osgi.framework.Bundle
类名称：Bundle
方法名：getHeaders

Bundle.getHeaders介绍

[英]Returns this bundle's Manifest headers and values. This method returns all the Manifest headers and values from the main section of this bundle's Manifest file; that is, all lines prior to the first blank line.

Manifest header names are case-insensitive. The methods of the returned Dictionary object must operate on header names in a case-insensitive manner. If a Manifest header value starts with "%", it must be localized according to the default locale. If no localization is found for a header value, the header value without the leading "%" is returned.

For example, the following Manifest headers and values are included if they are present in the Manifest file:

Bundle-Name 
Bundle-Vendor 
Bundle-Version 
Bundle-Description 
Bundle-DocURL 
Bundle-ContactAddress

This method must continue to return Manifest header information while this bundle is in the UNINSTALLED state.
[中]返回此捆绑包的清单头和值。此方法返回此捆绑包清单文件主部分中的所有清单头和值；即，第一个空行之前的所有行。
清单头名称不区分大小写。返回的Dictionary对象的方法必须以不区分大小写的方式对头名称进行操作。如果清单标头值以“%”开头，则必须根据默认区域设置对其进行本地化。如果未找到标头值的本地化，则返回不带前导“%”的标头值。
例如，如果清单文件中存在以下清单标题和值，则将包括这些标题和值：

Bundle-Name 
Bundle-Vendor 
Bundle-Version 
Bundle-Description 
Bundle-DocURL 
Bundle-ContactAddress

此捆绑包处于卸载状态时，此方法必须继续返回清单头信息。

代码示例

代码示例来源：origin: apache/ignite

if (b.getState() <= Bundle.RESOLVED || b.getHeaders().get(Constants.FRAGMENT_HOST) != null)
  continue;

代码示例来源：origin: apache/ignite

/**
 * @throws Exception
 */
@Test
public void testAllBundlesActiveAndFeaturesInstalled() throws Exception {
  // Asssert all bundles except fragments are ACTIVE.
  for (Bundle b : bundleCtx.getBundles()) {
    System.out.println(String.format("Checking state of bundle [symbolicName=%s, state=%s]",
      b.getSymbolicName(), b.getState()));
    if (b.getHeaders().get(Constants.FRAGMENT_HOST) == null)
      assertTrue(b.getState() == Bundle.ACTIVE);
  }
  // Check that according to the FeaturesService, all Ignite features except ignite-log4j are installed.
  Feature[] features = featuresSvc.getFeatures(IGNITE_FEATURES_NAME_REGEX);
  assertNotNull(features);
  assertEquals(EXPECTED_FEATURES, features.length);
  for (Feature f : features) {
    if (IGNORED_FEATURES.contains(f.getName()))
      continue;
    boolean installed = featuresSvc.isInstalled(f);
    System.out.println(String.format("Checking if feature is installed [featureName=%s, installed=%s]",
      f.getName(), installed));
    assertTrue(installed);
    assertEquals(PROJECT_VERSION.replaceAll("-", "."), f.getVersion().replaceAll("-", "."));
  }
}

代码示例来源：origin: spring-projects/spring-roo

private static boolean isFragment(Bundle bundle)
  {
    return bundle.getHeaders().get(Constants.FRAGMENT_HOST) != null;
  }
}

代码示例来源：origin: rhuss/jolokia

protected String getBundleVersion(String pSymbolicName) {
  BundleContext context = JolokiaServlet.getCurrentBundleContext();
  if (context != null) {
    for (Bundle bundle: context.getBundles()) {
      if (pSymbolicName.equalsIgnoreCase(bundle.getSymbolicName())) {
        Dictionary headers = bundle.getHeaders();
        return (String) headers.get("Bundle-Version");
      }
    }
  }
  return null;
}

代码示例来源：origin: spring-projects/spring-roo

/**
 * This service is being activated so setup it:
 * <ul>
 * <li>Create and open the {@link MetadataDependencyRegistryTracker}.</li>
 * </ul>
 */
protected void activate(final ComponentContext componentContext) {
 this.registryTracker =
   new MetadataDependencyRegistryTracker(componentContext.getBundleContext(), this);
 this.registryTracker.open();
 for (final Bundle b : componentContext.getBundleContext().getBundles()) {
  if (!MY_BUNDLE_SYMBOLIC_NAME.equals(b.getSymbolicName())) {
   continue;
  }
  final Object v = b.getHeaders().get("Bundle-Version");
  if (v != null) {
   final String version = v.toString();
   bundleVersionInfo = extractVersionInfoFromString(version);
  }
  break;
 }
}

代码示例来源：origin: spring-projects/spring-roo

startLevel = (StartLevel) context.getService(startLevelServiceReference);
for (final Bundle bundle : context.getBundles()) {
 final String value = bundle.getHeaders().get("Service-Component");
 if (value != null) {
  List<String> componentDescriptions = Arrays.asList(value.split("\\s*,\\s*"));

代码示例来源：origin: org.apache.felix/org.apache.felix.main

private static boolean isFragment(Bundle bundle)
  {
    return bundle.getHeaders().get(Constants.FRAGMENT_HOST) != null;
  }
}

代码示例来源：origin: org.apache.clerezza/triaxrs

private String getDefaultPrefix(Bundle bundle) {
  Dictionary<String, String> headers = bundle.getHeaders();
  String defaultPrefix = headers.get(Constants.TRIAXRS_PATH_PREFIX);
  if (defaultPrefix == null) {
    defaultPrefix = "";
  }
  return defaultPrefix;
}

代码示例来源：origin: OpenNMS/opennms

private boolean shouldAutoExportOnmsServices(Bundle bundle) {
    if (bundle == null) return false;
    String headerValue = bundle.getHeaders().get("OnmsAutoExportServices");
    if (headerValue == null) {
      return false;
    }
    return Boolean.valueOf(headerValue);
  }
}

代码示例来源：origin: OpenNMS/opennms

private boolean isVaadinBundle(Bundle bundle) {
    String importedPackages = (String) bundle.getHeaders().get(
        Constants.IMPORT_PACKAGE);
    if (importedPackages == null) {
      return false;
    }

    if (importedPackages.contains("com.vaadin")) {
      return true;
    }

    return false;
  }
}

代码示例来源：origin: protegeproject/protege

public static String getNiceBundleName(Bundle b) {
  String name = (String) b.getHeaders().get(Constants.BUNDLE_NAME);
  if (name == null) {
    name = b.getSymbolicName();
  }
  return name;
}

代码示例来源：origin: org.ops4j.pax.logging/pax-logging-service

public static String getBundleSymbolicName(Bundle bundle) {
  if (osgiVersion >= OSGI_1_3) {
    return bundle.getSymbolicName();
  } else {
    return (String) bundle.getHeaders().get(Constants.BUNDLE_SYMBOLICNAME);
  }
}

代码示例来源：origin: org.eclipse.gemini.blueprint/gemini-blueprint-core

/**
 * Indicates if the given bundle is a fragment or not.
 * 
 * @param bundle OSGi bundle
 * @return true if the given bundle is a fragment, false otherwise
 * @see Constants#FRAGMENT_HOST
 */
public static boolean isFragment(Bundle bundle) {
  Assert.notNull(bundle, "bundle is required");
  return bundle.getHeaders().get(Constants.FRAGMENT_HOST) != null;
}

代码示例来源：origin: org.apache.tuscany.sca/tuscany-contribution-osgi

/**
 * Constructs a new BundleReference.
 * 
 * @param bundle
 */
public BundleReference(Bundle bundle) {
  this.bundle = bundle;
  this.symbolicName = bundle.getSymbolicName();
  this.version = (String)bundle.getHeaders().get(Constants.BUNDLE_VERSION);
}

代码示例来源：origin: org.apache.felix/org.apache.felix.shell

public void execute(String s, PrintStream out, PrintStream err)
  {
    out.println(m_context.getBundle(0).getHeaders().get(Constants.BUNDLE_VERSION));
  }
}

代码示例来源：origin: apache/felix

public Hashtable getHeaders() {
  Hashtable ht=new Hashtable();
  Enumeration keys=bundle.getHeaders().keys();
  while(keys.hasMoreElements()) {
    Object key=keys.nextElement();
    ht.put(key, bundle.getHeaders().get(key));
  }
  return ht;
}
/* (non-Javadoc)

代码示例来源：origin: apache/karaf

public static String getBundleName(Bundle bundle) {
  if (bundle != null) {
    String name = bundle.getHeaders().get(Constants.BUNDLE_NAME);
    return (name == null)
        ? "Bundle " + Long.toString(bundle.getBundleId())
        : name + " (" + Long.toString(bundle.getBundleId()) + ")";
  }
  return "[STALE BUNDLE]";
}

代码示例来源：origin: protegeproject/protege

public static boolean isSingleton(Bundle b) {
  StringBuffer singleton1 = new StringBuffer(Constants.SINGLETON_DIRECTIVE);
  singleton1.append(":=true");
  StringBuffer singleton2 = new StringBuffer(Constants.SINGLETON_DIRECTIVE);
  singleton2.append(":=\"true\"");
  return ((String) b.getHeaders().get(Constants.BUNDLE_SYMBOLICNAME)).contains(singleton1.toString()) ||
      ((String) b.getHeaders().get(Constants.BUNDLE_SYMBOLICNAME)).contains(singleton2.toString());
}

代码示例来源：origin: apache/karaf

public static String getBundleName(Bundle bundle) {
  if (bundle != null) {
    String name = bundle.getHeaders().get(Constants.BUNDLE_NAME);
    return (name == null)
        ? "Bundle " + Long.toString(bundle.getBundleId())
        : name + " (" + Long.toString(bundle.getBundleId()) + ")";
  }
  return "[STALE BUNDLE]";
}

代码示例来源：origin: OpenNMS/opennms

private static Set<Bundle> getUnresolvedVaadinThemeFragments(BundleContext context) {
    return Arrays.stream(context.getBundles())
        .filter(bundle -> {
          String fragmentHost = bundle.getHeaders().get("Fragment-Host");
          return fragmentHost != null && fragmentHost.contains("com.vaadin.themes") && bundle.getState() == Bundle.INSTALLED;
        })
        .collect(Collectors.toSet());
  }
}

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