Class DualResolver

java.lang.Object

org.apache.ivy.plugins.resolver.AbstractResolver

org.apache.ivy.plugins.resolver.DualResolver

All Implemented Interfaces:

Validatable, DependencyResolver, HasLatestStrategy

public class DualResolver
extends AbstractResolver

DualResolver is used to resolve dependencies with one dependency revolver, called ivy resolver, and then download artifacts found in the resolved dependencies from a second dependency resolver, called artifact resolver. It is especially useful with resolvers using repository where there is a lot of artifact, but no ivy file, like the maven ibiblio repository. If no ivy file is found by the ivy resolver, the artifact resolver is used to check if there is artifact corresponding to the request (with default ivy file). For artifact download, however, only the artifact resolver is used. Exactly two resolvers should be added to this resolver for it to work properly. The first resolver added if the ivy resolver, the second is the artifact one.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DESCRIPTOR_OPTIONAL
static final String	DESCRIPTOR_REQUIRED

Constructor Summary

Constructors

Constructor	Description
DualResolver()

Method Summary

Modifier and Type	Method	Description
void	abortPublishTransaction()
void	add(DependencyResolver resolver)
void	beginPublishTransaction(ModuleRevisionId module, boolean overwrite)
void	commitPublishTransaction()
ArtifactDownloadReport	download(ArtifactOrigin artifact, DownloadOptions options)	Default implementation downloads the artifact without taking advantage of its location
DownloadReport	download(Artifact[] artifacts, DownloadOptions options)	Download artifacts with specified DownloadOptions.
void	dumpSettings()
boolean	exists(Artifact artifact)	Returns true if the given artifact can be located by this resolver and actually exist.
ResolvedResource	findIvyFileRef(DependencyDescriptor dd, ResolveData data)	Finds the module descriptor for the specified DependencyDescriptor.
DependencyResolver	getArtifactResolver()
ResolvedModuleRevision	getDependency(DependencyDescriptor dd, ResolveData data)	Resolve a module by id, getting its module descriptor and resolving the revision if it's a latest one (i.e.
DependencyResolver	getIvyResolver()
boolean	isAllownomd()
ArtifactOrigin	locate(Artifact artifact)	Default implementation actually download the artifact Subclasses should overwrite this to avoid the download
void	publish(Artifact artifact, File src, boolean overwrite)
void	reportFailure()	Reports last resolve failure as Messages
void	reportFailure(Artifact art)	Reports last artifact download failure as Messages
void	setAllownomd(boolean allownomd)
void	setArtifactResolver(DependencyResolver artifactResolver)
void	setDescriptor(String descriptorRule)	Sets the module descriptor presence rule.
void	setIvyResolver(DependencyResolver ivyResolver)

Methods inherited from class AbstractResolver

checkInterrupted, checkLatest, doValidate, findModuleInCache, findModuleInCache, fromSystem, fromSystem, getCacheDownloadOptions, getCacheOptions, getChangingMatcherName, getChangingPattern, getDownloadOptions, getEventManager, getLatest, getLatestStrategy, getName, getNamespace, getParserSettings, getRepositoryCacheManager, getSettings, getSystemNode, getTimeoutConstraint, getTypeName, hidePassword, isAfter, isValidate, listModules, listOrganisations, listRevisions, listTokenValues, listTokenValues, saveModuleRevisionIfNeeded, setCache, setChangingMatcher, setChangingPattern, setCheckmodified, setEventManager, setLatest, setLatestStrategy, setName, setNamespace, setRepositoryCacheManager, setSettings, setTimeoutConstraint, setValidate, toString, toSystem, toSystem, toSystem, toSystem, toSystem, toSystem, validate

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

DESCRIPTOR_OPTIONAL

public static final String DESCRIPTOR_OPTIONAL

See Also:

• Constant Field Values

DESCRIPTOR_REQUIRED

public static final String DESCRIPTOR_REQUIRED

See Also:

• Constant Field Values

Constructor Details

DualResolver

public DualResolver()

Method Details

add

public void add(DependencyResolver resolver)

getDependency

public ResolvedModuleRevision getDependency(DependencyDescriptor dd,
 ResolveData data)
                                     throws ParseException

Description copied from interface: DependencyResolver

Resolve a module by id, getting its module descriptor and resolving the revision if it's a latest one (i.e. a revision uniquely identifying the revision of a module in the current environment - If this revision is not able to identify uniquely the revision of the module outside of the current environment, then the resolved revision must begin by ##)

Parameters:

dd - DependencyDescriptor

data - ResolveData

Returns:

ResolvedModuleRevision

Throws:

ParseException - if something goes wrong

findIvyFileRef

public ResolvedResource findIvyFileRef(DependencyDescriptor dd,
 ResolveData data)

Description copied from interface: DependencyResolver

Finds the module descriptor for the specified DependencyDescriptor. If this resolver can't find the module descriptor, null is returned.

Parameters:

dd - the dependency descriptor

data - the resolve data

Returns:

the module descriptor, or null

reportFailure

public void reportFailure()

Description copied from interface: DependencyResolver

Reports last resolve failure as Messages

Specified by:

reportFailure in interface DependencyResolver

Overrides:

reportFailure in class AbstractResolver

reportFailure

public void reportFailure(Artifact art)

Description copied from interface: DependencyResolver

Reports last artifact download failure as Messages

Specified by:

reportFailure in interface DependencyResolver

Overrides:

reportFailure in class AbstractResolver

Parameters:

art - Artifact

download

public DownloadReport download(Artifact[] artifacts,
 DownloadOptions options)

Description copied from interface: DependencyResolver

Download artifacts with specified DownloadOptions.

The resolver will always make a best effort, and do not stop when an artifact is not available. It rather continue to attempt to download other requested artifacts, and report what has been done in the returned DownloadReport.

The returned DownloadReport is never null, and always contain an ArtifactDownloadReport for each requested Artifact.

Parameters:

artifacts - an array of artifacts to download. Must not be null.

options - options to apply for this download. Must not be null.

Returns:

a DownloadReport with details about each Artifact download.

getArtifactResolver

public DependencyResolver getArtifactResolver()

setArtifactResolver

public void setArtifactResolver(DependencyResolver artifactResolver)

getIvyResolver

public DependencyResolver getIvyResolver()

setIvyResolver

public void setIvyResolver(DependencyResolver ivyResolver)

publish

public void publish(Artifact artifact,
 File src,
 boolean overwrite)
             throws IOException

Throws:

IOException

abortPublishTransaction

public void abortPublishTransaction()
                             throws IOException

Specified by:

abortPublishTransaction in interface DependencyResolver

Overrides:

abortPublishTransaction in class AbstractResolver

Throws:

IOException

beginPublishTransaction

public void beginPublishTransaction(ModuleRevisionId module,
 boolean overwrite)
                             throws IOException

Specified by:

beginPublishTransaction in interface DependencyResolver

Overrides:

beginPublishTransaction in class AbstractResolver

Throws:

IOException

commitPublishTransaction

public void commitPublishTransaction()
                              throws IOException

Specified by:

commitPublishTransaction in interface DependencyResolver

Overrides:

commitPublishTransaction in class AbstractResolver

Throws:

IOException

dumpSettings

public void dumpSettings()

Specified by:

dumpSettings in interface DependencyResolver

Overrides:

dumpSettings in class AbstractResolver

exists

public boolean exists(Artifact artifact)

Description copied from interface: DependencyResolver

Returns true if the given artifact can be located by this resolver and actually exist.

Specified by:

exists in interface DependencyResolver

Overrides:

exists in class AbstractResolver

Parameters:

artifact - the artifact which should be tested.

Returns:

true if the given artifact can be located by this resolver and actually exist.

locate

public ArtifactOrigin locate(Artifact artifact)

Description copied from class: AbstractResolver

Default implementation actually download the artifact Subclasses should overwrite this to avoid the download

Specified by:

locate in interface DependencyResolver

Overrides:

locate in class AbstractResolver

Parameters:

artifact - ArtifactOrigin

Returns:

ArtifactOrigin

download

public ArtifactDownloadReport download(ArtifactOrigin artifact,
 DownloadOptions options)

Description copied from class: AbstractResolver

Default implementation downloads the artifact without taking advantage of its location

Specified by:

download in interface DependencyResolver

Overrides:

download in class AbstractResolver

Parameters:

artifact - ArtifactOrigin

options - DownloadOptions

Returns:

ArtifactDownloadReport

isAllownomd

public boolean isAllownomd()

setAllownomd

public void setAllownomd(boolean allownomd)

setDescriptor

public void setDescriptor(String descriptorRule)

Sets the module descriptor presence rule. Should be one of DESCRIPTOR_REQUIRED or DESCRIPTOR_OPTIONAL.

Parameters:

descriptorRule - the descriptor rule to use with this resolver.