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## org.apache.ivy
Class Ivy

    java.lang.Object
      org.apache.ivy.Ivy

    public class Ivy

extends java.lang.Object

Ivy is a free java based dependency manager.

This class is the main class of Ivy, which acts as a Facade to all services offered by Ivy:

- resolve dependencies
- retrieve artifacts to a local location
- deliver and publish modules
- repository search and listing

Here is one typical usage:

     Ivy ivy = Ivy.newInstance();
     ivy.configure(new URL("ivysettings.xml"));
     ivy.resolve(new URL("ivy.xml"));

## Using Ivy engines directly

If the methods offered by the `Ivy` class are not flexible enough and you want to use Ivy engines directly, you need to call the methods within a single `IvyContext` associated to the `Ivy` instance you use.
To do so, it is recommended to use the `execute(org.apache.ivy.Ivy.IvyCallback)` method like this:

     Ivy ivy = Ivy.newInstance();
     ivy.execute(new IvyCallback() {
         public Object doInIvyContext(Ivy ivy, IvyContext context) {
             // obviously we can use regular Ivy methods in the callback
             ivy.configure(new URL("ivysettings.xml"));
             // and we can safely use Ivy engines too
             ivy.getResolveEngine().resolve(new URL("ivy.xml"));
             return null;
         }
     });

Nested Class Summary
`static interface` | `Ivy.IvyCallback` Callback used to execute a set of Ivy related methods within an `IvyContext`.

Field Summary
`static java.text.SimpleDateFormat` | `DATE_FORMAT`

Constructor Summary
`Ivy()` The default constructor of Ivy allows to create an instance of Ivy with none of its dependencies (engines, settings, ...) created.

Method Summary
`void` | `bind()` This method is used to bind this Ivy instance to required dependencies, i.e. instance of settings, engines, and so on.
`boolean` | `check(java.net.URL ivyFile, java.lang.String resolvername)`
`void` | `checkInterrupted()` Check if the current operation has been interrupted, and if it is the case, throw a runtime exception
`void` | `configure(java.io.File settingsFile)`
`void` | `configure(java.net.URL settingsURL)`
`void` | `configureDefault()`
`void` | `configureDefault14()` Configures Ivy with 1.4 compatible default settings
`void` | `deliver(ModuleRevisionId mrid, java.lang.String revision, java.lang.String destIvyPattern)`
`void` | `deliver(ModuleRevisionId mrid, java.lang.String revision, java.lang.String destIvyPattern, DeliverOptions options)` Example of use: deliver(mrid, "1.5", "target/ivy/ivy-[revision].xml", DeliverOptions.newInstance(settings).setStatus("release").setValidate(false));
`void` | `deliver(java.lang.String revision, java.lang.String destIvyPattern, DeliverOptions options)`
`java.lang.Object` | `execute(Ivy.IvyCallback callback)` Executes the given callback in the context of this Ivy instance.
`ResolvedModuleRevision` | `findModule(ModuleRevisionId mrid)`
`CheckEngine` | `getCheckEngine()`
`DeliverEngine` | `getDeliverEngine()`
`EventManager` | `getEventManager()`
`InstallEngine` | `getInstallEngine()`
`static java.lang.String` | `getIvyDate()` Returns the date at which this version of Ivy has been built.
`static java.lang.String` | `getIvyHomeURL()` Returns the URL at which Ivy web site can be found.
`static java.lang.String` | `getIvyVersion()` Returns the current version of Ivy, as displayed on the console when Ivy is initialized.
`MessageLoggerEngine` | `getLoggerEngine()`
`PublishEngine` | `getPublishEngine()`
`RepositoryManagementEngine` | `getRepositoryEngine()`
`ResolutionCacheManager` | `getResolutionCacheManager()`
`ResolveEngine` | `getResolveEngine()`
`RetrieveEngine` | `getRetrieveEngine()`
`SearchEngine` | `getSearchEngine()`
`IvySettings` | `getSettings()`
`SortEngine` | `getSortEngine()`
`java.lang.String` | `getVariable(java.lang.String name)`
`static java.lang.String` | `getWorkingRevision()`
`ResolveReport` | `install(ModuleRevisionId mrid, java.lang.String from, java.lang.String to, InstallOptions options)`
`void` | `interrupt()` Interrupts the current running operation, no later than interruptTimeout milliseconds after the call
`void` | `interrupt(java.lang.Thread operatingThread)` Interrupts the current running operation in the given operating thread, no later than interruptTimeout milliseconds after the call
`boolean` | `isInterrupted()`
`ModuleEntry[]` | `listModuleEntries(OrganisationEntry org)`
`ModuleId[]` | `listModules(ModuleId criteria, PatternMatcher matcher)`
`ModuleRevisionId[]` | `listModules(ModuleRevisionId criteria, PatternMatcher matcher)`
`java.lang.String[]` | `listModules(java.lang.String org)`
`OrganisationEntry[]` | `listOrganisationEntries()`
`java.lang.String[]` | `listOrganisations()`
`RevisionEntry[]` | `listRevisionEntries(ModuleEntry module)`
`java.lang.String[]` | `listRevisions(java.lang.String org, java.lang.String module)`
`java.lang.String[]` | `listTokenValues(java.lang.String token, java.util.Map otherTokenValues)`
`static Ivy` | `newInstance()`
`static Ivy` | `newInstance(IvySettings settings)`
`void` | `popContext()` Pops the current Ivy context.
`java.util.Collection` | `publish(ModuleRevisionId mrid, java.util.Collection srcArtifactPattern, java.lang.String resolverName, PublishOptions options)`
`void` | `pushContext()` Pushes a new IvyContext bound to this Ivy instance if the current context is not already bound to this Ivy instance.
`ResolveReport` | `resolve(java.io.File ivySource)`
`ResolveReport` | `resolve(ModuleDescriptor md, ResolveOptions options)`
`ResolveReport` | `resolve(ModuleRevisionId mrid, ResolveOptions options, boolean changing)`
`ResolveReport` | `resolve(java.net.URL ivySource)`
`ResolveReport` | `resolve(java.net.URL ivySource, ResolveOptions options)`
`int` | `retrieve(ModuleRevisionId mrid, java.lang.String destFilePattern, RetrieveOptions options)`
`void` | `setCheckEngine(CheckEngine checkEngine)`
`void` | `setDeliverEngine(DeliverEngine deliverEngine)`
`void` | `setEventManager(EventManager eventManager)`
`void` | `setInstallEngine(InstallEngine installEngine)`
`void` | `setPublishEngine(PublishEngine publishEngine)`
`void` | `setRepositoryEngine(RepositoryManagementEngine repositoryEngine)`
`void` | `setResolveEngine(ResolveEngine resolveEngine)`
`void` | `setRetrieveEngine(RetrieveEngine retrieveEngine)`
`void` | `setSearchEngine(SearchEngine searchEngine)`
`void` | `setSettings(IvySettings settings)`
`void` | `setSortEngine(SortEngine sortEngine)`
`void` | `setVariable(java.lang.String varName, java.lang.String value)`
`java.util.List` | `sortModuleDescriptors(java.util.Collection moduleDescriptors, SortOptions options)` Sorts the given ModuleDescriptors from the less dependent to the more dependent.
`java.util.List` | `sortNodes(java.util.Collection nodes, SortOptions options)` Sorts the collection of IvyNode from the less dependent to the more dependent
`java.lang.String` | `substitute(java.lang.String str)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### DATE_FORMAT

    public static final java.text.SimpleDateFormat DATE_FORMAT

Constructor Detail

### Ivy

    public Ivy()

  The default constructor of Ivy allows to create an instance of Ivy with none of its dependencies (engines, settings, ...) created. If you use this constructor, it's your responsibility to set the dependencies of Ivy using the appropriate setters (setResolveEngine, ...). You can also call the bind method to set all the dependencies except those that you have provided using the setters. If you want to get an instance ready to use, prefer the use of Ivy.newInstance().

Method Detail

### getIvyVersion

    public static java.lang.String getIvyVersion()

  Returns the current version of Ivy, as displayed on the console when Ivy is initialized.

  Returns:
    the current version of Ivy

### getIvyDate

    public static java.lang.String getIvyDate()

  Returns the date at which this version of Ivy has been built.

  May be empty if unknown.

  Returns:
    the date at which this version of Ivy has been built

### getIvyHomeURL

    public static java.lang.String getIvyHomeURL()

  Returns the URL at which Ivy web site can be found.

  Returns:
    the URL at which Ivy web site can be found

### newInstance

    public static Ivy newInstance()

### newInstance

    public static Ivy newInstance(IvySettings settings)

### bind

    public void bind()

  This method is used to bind this Ivy instance to required dependencies, i.e. instance of settings, engines, and so on.

  After this call Ivy is still not configured, which means that the settings object is still empty.

### execute

    public java.lang.Object execute(Ivy.IvyCallback callback)

  Executes the given callback in the context of this Ivy instance.

  Alternatively you can use the `pushContext()` and `popContext()` methods, but this is not recommended:

       Object result = null;
       pushContext();
       try {
           result = callback.doInIvyContext(this, IvyContext.getContext());
       } finally {
           popContext();
       }
       doSomethingWithResult(result);

  Parameters:
    `callback` -
  Returns:

### pushContext

    public void pushContext()

  Pushes a new IvyContext bound to this Ivy instance if the current context is not already bound to this Ivy instance. If the current context is already bound to this Ivy instance, it pushes the current context on the context stack, so that you can (and must) always call `popContext()` when you're done.

  Alternatively, you can use the `execute(org.apache.ivy.Ivy.IvyCallback)` method which takes care of everything for you.

### popContext

    public void popContext()

  Pops the current Ivy context.

  You must call this method once and only once for each call to `pushContext()`, when you're done with the your Ivy related work.

  Alternatively, you can use the `execute(org.apache.ivy.Ivy.IvyCallback)` method which takes care of everything for you.

### configure

    public void configure(java.io.File settingsFile)
                   throws java.text.ParseException,
                          java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### configure

    public void configure(java.net.URL settingsURL)
                   throws java.text.ParseException,
                          java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### configureDefault

    public void configureDefault()
                          throws java.text.ParseException,
                                 java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### configureDefault14

    public void configureDefault14()
                            throws java.text.ParseException,
                                   java.io.IOException

  Configures Ivy with 1.4 compatible default settings

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### check

    public boolean check(java.net.URL ivyFile,
                         java.lang.String resolvername)

### resolve

    public ResolveReport resolve(java.io.File ivySource)
                          throws java.text.ParseException,
                                 java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### resolve

    public ResolveReport resolve(java.net.URL ivySource)
                          throws java.text.ParseException,
                                 java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### resolve

    public ResolveReport resolve(ModuleRevisionId mrid,
                                 ResolveOptions options,
                                 boolean changing)
                          throws java.text.ParseException,
                                 java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### resolve

    public ResolveReport resolve(java.net.URL ivySource,
                                 ResolveOptions options)
                          throws java.text.ParseException,
                                 java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### resolve

    public ResolveReport resolve(ModuleDescriptor md,
                                 ResolveOptions options)
                          throws java.text.ParseException,
                                 java.io.IOException

  Throws:
    `java.text.ParseException`
    `java.io.IOException`

### install

    public ResolveReport install(ModuleRevisionId mrid,
                                 java.lang.String from,
                                 java.lang.String to,
                                 InstallOptions options)
                          throws java.io.IOException

  Throws:
    `java.io.IOException`

### retrieve

    public int retrieve(ModuleRevisionId mrid,
                        java.lang.String destFilePattern,
                        RetrieveOptions options)
                 throws java.io.IOException

  Throws:
    `java.io.IOException`

### deliver

    public void deliver(ModuleRevisionId mrid,
                        java.lang.String revision,
                        java.lang.String destIvyPattern)
                 throws java.io.IOException,
                        java.text.ParseException

  Throws:
    `java.io.IOException`
    `java.text.ParseException`

### deliver

    public void deliver(java.lang.String revision,
                        java.lang.String destIvyPattern,
                        DeliverOptions options)
                 throws java.io.IOException,
                        java.text.ParseException

  Throws:
    `java.io.IOException`
    `java.text.ParseException`

### deliver

    public void deliver(ModuleRevisionId mrid,
                        java.lang.String revision,
                        java.lang.String destIvyPattern,
                        DeliverOptions options)
                 throws java.io.IOException,
                        java.text.ParseException

  Example of use: deliver(mrid, "1.5", "target/ivy/ivy-[revision].xml", DeliverOptions.newInstance(settings).setStatus("release").setValidate(false));

  Parameters:
    `mrid` -
    `revision` -
    `destIvyPattern` -
    `options` -
  Throws:
    `java.io.IOException`
    `java.text.ParseException`

### publish

    public java.util.Collection publish(ModuleRevisionId mrid,
                                        java.util.Collection srcArtifactPattern,
                                        java.lang.String resolverName,
                                        PublishOptions options)
                                 throws java.io.IOException

  Throws:
    `java.io.IOException`

### sortNodes

    public java.util.List sortNodes(java.util.Collection nodes,
                                    SortOptions options)

  Sorts the collection of IvyNode from the less dependent to the more dependent

### sortModuleDescriptors

    public java.util.List sortModuleDescriptors(java.util.Collection moduleDescriptors,
                                                SortOptions options)

  Sorts the given ModuleDescriptors from the less dependent to the more dependent. This sort ensures that a ModuleDescriptor is always found in the list before all ModuleDescriptors depending directly on it.

  Parameters:
    `moduleDescriptors` - a Collection of ModuleDescriptor to sort
    `options` - Options to use to sort the descriptors.
  Returns:
    a List of sorted ModuleDescriptors
  Throws:
    `CircularDependencyException` - if a circular dependency exists and circular dependency strategy decide to throw an exception

### findModule

    public ResolvedModuleRevision findModule(ModuleRevisionId mrid)

### listModuleEntries

    public ModuleEntry[] listModuleEntries(OrganisationEntry org)

### listModules

    public ModuleId[] listModules(ModuleId criteria,
                                  PatternMatcher matcher)

### listModules

    public ModuleRevisionId[] listModules(ModuleRevisionId criteria,
                                          PatternMatcher matcher)

### listModules

    public java.lang.String[] listModules(java.lang.String org)

### listOrganisationEntries

    public OrganisationEntry[] listOrganisationEntries()

### listOrganisations

    public java.lang.String[] listOrganisations()

### listRevisionEntries

    public RevisionEntry[] listRevisionEntries(ModuleEntry module)

### listRevisions

    public java.lang.String[] listRevisions(java.lang.String org,
                                            java.lang.String module)

### listTokenValues

    public java.lang.String[] listTokenValues(java.lang.String token,
                                              java.util.Map otherTokenValues)

### interrupt

    public void interrupt()

  Interrupts the current running operation, no later than interruptTimeout milliseconds after the call

### interrupt

    public void interrupt(java.lang.Thread operatingThread)

  Interrupts the current running operation in the given operating thread, no later than interruptTimeout milliseconds after the call

### isInterrupted

    public boolean isInterrupted()

### checkInterrupted

    public void checkInterrupted()

  Check if the current operation has been interrupted, and if it is the case, throw a runtime exception

### getWorkingRevision

    public static java.lang.String getWorkingRevision()

### getResolutionCacheManager

    public ResolutionCacheManager getResolutionCacheManager()

### getVariable

    public java.lang.String getVariable(java.lang.String name)

### substitute

    public java.lang.String substitute(java.lang.String str)

### setVariable

    public void setVariable(java.lang.String varName,
                            java.lang.String value)

### getSettings

    public IvySettings getSettings()

### getEventManager

    public EventManager getEventManager()

### getCheckEngine

    public CheckEngine getCheckEngine()

### setCheckEngine

    public void setCheckEngine(CheckEngine checkEngine)

### getDeliverEngine

    public DeliverEngine getDeliverEngine()

### setDeliverEngine

    public void setDeliverEngine(DeliverEngine deliverEngine)

### getInstallEngine

    public InstallEngine getInstallEngine()

### setInstallEngine

    public void setInstallEngine(InstallEngine installEngine)

### getPublishEngine

    public PublishEngine getPublishEngine()

### setPublishEngine

    public void setPublishEngine(PublishEngine publishEngine)

### getResolveEngine

    public ResolveEngine getResolveEngine()

### setResolveEngine

    public void setResolveEngine(ResolveEngine resolveEngine)

### getRetrieveEngine

    public RetrieveEngine getRetrieveEngine()

### setRetrieveEngine

    public void setRetrieveEngine(RetrieveEngine retrieveEngine)

### getSearchEngine

    public SearchEngine getSearchEngine()

### setSearchEngine

    public void setSearchEngine(SearchEngine searchEngine)

### getSortEngine

    public SortEngine getSortEngine()

### setSortEngine

    public void setSortEngine(SortEngine sortEngine)

### getRepositoryEngine

    public RepositoryManagementEngine getRepositoryEngine()

### setRepositoryEngine

    public void setRepositoryEngine(RepositoryManagementEngine repositoryEngine)

### setEventManager

    public void setEventManager(EventManager eventManager)

### setSettings

    public void setSettings(IvySettings settings)

### getLoggerEngine

    public MessageLoggerEngine getLoggerEngine()

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