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## org.apache.ivy.plugins.resolver
Class BasicResolver

    java.lang.Object
      org.apache.ivy.plugins.resolver.AbstractResolver
          org.apache.ivy.plugins.resolver.BasicResolver

All Implemented Interfaces:
  Validatable, DependencyResolver, HasLatestStrategy

Direct Known Subclasses:
  AbstractPatternsBasedResolver

    public abstract class BasicResolver

extends AbstractResolver

Field Summary
`static java.text.SimpleDateFormat` | `DATE_FORMAT`
`static java.lang.String` | `DESCRIPTOR_OPTIONAL`
`static java.lang.String` | `DESCRIPTOR_REQUIRED`

Constructor Summary
`BasicResolver()`

Method Summary
`protected boolean` | `acceptLatest()`
`protected void` | `clearArtifactAttempts()`
`protected void` | `clearIvyAttempts()`
`DownloadReport` | `download(Artifact[] artifacts, DownloadOptions options)` Download artifacts with specified DownloadOptions.
`ArtifactDownloadReport` | `download(ArtifactOrigin origin, DownloadOptions options)` Default implementation downloads the artifact without taking advantage of its location
`boolean` | `exists(Artifact artifact)` Returns `true` if the given artifact can be located by this resolver and actually exist.
`protected abstract ResolvedResource` | `findArtifactRef(Artifact artifact, java.util.Date date)`
`protected ResolvedResource` | `findFirstArtifactRef(ModuleDescriptor md, DependencyDescriptor dd, ResolveData data)`
`protected abstract java.util.Collection` | `findNames(java.util.Map tokenValues, java.lang.String token)`
`protected abstract long` | `get(Resource resource, java.io.File dest)`
`protected long` | `getAndCheck(Resource resource, java.io.File dest)`
`protected ResolvedResource` | `getArtifactRef(Artifact artifact, java.util.Date date)`
`java.lang.String[]` | `getChecksumAlgorithms()`
`protected ResourceMDParser` | `getDefaultRMDParser(ModuleId mid)`
`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. a revision uniquely identifying the revision of a module in the current environment - If this revision is not able to identify uniquelely the revision of the module outside of the current environment, then the resolved revision must begin by ##)
`protected long` | `getPublicationDate(ModuleDescriptor md, DependencyDescriptor dd, ResolveData data)`
`protected abstract Resource` | `getResource(java.lang.String source)`
`protected ResourceMDParser` | `getRMDParser(DependencyDescriptor dd, ResolveData data)`
`java.lang.String` | `getWorkspaceName()`
`boolean` | `isAllownomd()`
`boolean` | `isCheckconsistency()`
`boolean` | `isEnvDependent()`
`boolean` | `isForce()`
`ModuleEntry[]` | `listModules(OrganisationEntry org)`
`OrganisationEntry[]` | `listOrganisations()`
`RevisionEntry[]` | `listRevisions(ModuleEntry mod)`
`java.lang.String[]` | `listTokenValues(java.lang.String token, java.util.Map otherTokenValues)` List all the values the given token can take if other tokens are set as described in the otherTokenValues map.
`ArtifactOrigin` | `locate(Artifact artifact)` Default implementation actually download the artifact Subclasses should overwrite this to avoid the download
`protected void` | `logArtifactAttempt(Artifact art, java.lang.String attempt)`
`protected void` | `logAttempt(java.lang.String attempt)`
`protected void` | `logIvyAttempt(java.lang.String attempt)`
`ResolvedModuleRevision` | `parse(ResolvedResource mdRef, DependencyDescriptor dd, ResolveData data)`
`void` | `reportFailure()` Reports last resolve failure as Messages
`void` | `reportFailure(Artifact art)` Reports last artifact download failure as Messages
`void` | `setAllownomd(boolean b)`
`void` | `setCheckconsistency(boolean checkConsitency)`
`void` | `setChecksums(java.lang.String checksums)`
`void` | `setDescriptor(java.lang.String descriptorRule)` Sets the module descriptor presence rule.
`void` | `setEnvDependent(boolean envDependent)`
`void` | `setForce(boolean force)`
`void` | `setWorkspaceName(java.lang.String workspaceName)`
`protected boolean` | `shouldReturnResolvedModule(DependencyDescriptor dd, ResolvedModuleRevision mr)`
`java.lang.String` | `toString()`

Methods inherited from class org.apache.ivy.plugins.resolver.AbstractResolver
`abortPublishTransaction, beginPublishTransaction, checkInterrupted, checkLatest, commitPublishTransaction, doValidate, dumpSettings, findModuleInCache, findModuleInCache, fromSystem, fromSystem, getCacheDownloadOptions, getCacheOptions, getChangingMatcherName, getChangingPattern, getDownloadOptions, getEventManager, getLatest, getLatestStrategy, getName, getNamespace, getParserSettings, getRepositoryCacheManager, getSettings, getSystemNode, getTypeName, hidePassword, isAfter, isValidate, listTokenValues, saveModuleRevisionIfNeeded, setCache, setChangingMatcher, setChangingPattern, setCheckmodified, setEventManager, setLatest, setLatestStrategy, setName, setNamespace, setRepositoryCacheManager, setSettings, setValidate, toSystem, toSystem, toSystem, toSystem, toSystem, toSystem, validate`

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

Methods inherited from interface org.apache.ivy.plugins.resolver.DependencyResolver
`findIvyFileRef, publish`

Field Detail

### DESCRIPTOR_OPTIONAL

    public static final java.lang.String DESCRIPTOR_OPTIONAL

See Also:
  Constant Field Values

### DESCRIPTOR_REQUIRED

    public static final java.lang.String DESCRIPTOR_REQUIRED

See Also:
  Constant Field Values

### DATE_FORMAT

    public static final java.text.SimpleDateFormat DATE_FORMAT

Constructor Detail

### BasicResolver

    public BasicResolver()

Method Detail

### getWorkspaceName

    public java.lang.String getWorkspaceName()

### setWorkspaceName

    public void setWorkspaceName(java.lang.String workspaceName)

### isEnvDependent

    public boolean isEnvDependent()

### setEnvDependent

    public void setEnvDependent(boolean envDependent)

### getDependency

    public ResolvedModuleRevision getDependency(DependencyDescriptor dd,
                                                ResolveData data)
                                         throws java.text.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 uniquelely the revision of the module outside of the current environment, then the resolved revision must begin by ##)

  Throws:
    `java.text.ParseException`

### shouldReturnResolvedModule

    protected boolean shouldReturnResolvedModule(DependencyDescriptor dd,
                                                 ResolvedModuleRevision mr)

### parse

    public ResolvedModuleRevision parse(ResolvedResource mdRef,
                                        DependencyDescriptor dd,
                                        ResolveData data)
                                 throws java.text.ParseException

  Throws:
    `java.text.ParseException`

### getRMDParser

    protected ResourceMDParser getRMDParser(DependencyDescriptor dd,
                                            ResolveData data)

### getDefaultRMDParser

    protected ResourceMDParser getDefaultRMDParser(ModuleId mid)

### clearIvyAttempts

    protected void clearIvyAttempts()

### logIvyAttempt

    protected void logIvyAttempt(java.lang.String attempt)

### logArtifactAttempt

    protected void logArtifactAttempt(Artifact art,
                                      java.lang.String attempt)

### logAttempt

    protected void logAttempt(java.lang.String attempt)

### 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`

### acceptLatest

    protected boolean acceptLatest()

### 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.

### clearArtifactAttempts

    protected void clearArtifactAttempts()

### download

    public ArtifactDownloadReport download(ArtifactOrigin origin,
                                           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:
    `origin` - the location of the artifact to download. Must not be `null`.
    `options` - options to apply for this download. Must not be `null`.
  Returns:
    a report detailing how the download has gone, is never `null`.

### getResource

    protected abstract Resource getResource(java.lang.String source)
                                     throws java.io.IOException

  Throws:
    `java.io.IOException`

### 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` - the artifact which should be located
  Returns:
    the artifact location, or `null` if it can't be located by this resolver or doesn't exist.

### getPublicationDate

    protected long getPublicationDate(ModuleDescriptor md,
                                      DependencyDescriptor dd,
                                      ResolveData data)

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `AbstractResolver`

### listTokenValues

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

  Description copied from interface: `DependencyResolver`
  List all the values the given token can take if other tokens are set as described in the otherTokenValues map. For instance, if token = "revision" and the map contains "organisation"->"foo" "module"->"bar" The results will be the list of revisions of the module bar from the org foo.

  Note that listing does not take into account namespaces, and return raw information without any namespace transformation. The caller is responsible for calling namespace transformation with the Namespace returned by `DependencyResolver.getNamespace()`.

  Specified by:
    `listTokenValues` in interface `DependencyResolver`
  Overrides:
    `listTokenValues` in class `AbstractResolver`

### listOrganisations

    public OrganisationEntry[] listOrganisations()

  Specified by:
    `listOrganisations` in interface `DependencyResolver`
  Overrides:
    `listOrganisations` in class `AbstractResolver`

### listModules

    public ModuleEntry[] listModules(OrganisationEntry org)

  Specified by:
    `listModules` in interface `DependencyResolver`
  Overrides:
    `listModules` in class `AbstractResolver`

### listRevisions

    public RevisionEntry[] listRevisions(ModuleEntry mod)

  Specified by:
    `listRevisions` in interface `DependencyResolver`
  Overrides:
    `listRevisions` in class `AbstractResolver`

### findNames

    protected abstract java.util.Collection findNames(java.util.Map tokenValues,
                                                      java.lang.String token)

### findFirstArtifactRef

    protected ResolvedResource findFirstArtifactRef(ModuleDescriptor md,
                                                    DependencyDescriptor dd,
                                                    ResolveData data)

### getAndCheck

    protected long getAndCheck(Resource resource,
                               java.io.File dest)
                        throws java.io.IOException

  Throws:
    `java.io.IOException`

### getArtifactRef

    protected ResolvedResource getArtifactRef(Artifact artifact,
                                              java.util.Date date)

### findArtifactRef

    protected abstract ResolvedResource findArtifactRef(Artifact artifact,
                                                        java.util.Date date)

### get

    protected abstract long get(Resource resource,
                                java.io.File dest)
                         throws java.io.IOException

  Throws:
    `java.io.IOException`

### isCheckconsistency

    public boolean isCheckconsistency()

### setCheckconsistency

    public void setCheckconsistency(boolean checkConsitency)

### setForce

    public void setForce(boolean force)

### isForce

    public boolean isForce()

### isAllownomd

    public boolean isAllownomd()

### setAllownomd

    public void setAllownomd(boolean b)

### setDescriptor

    public void setDescriptor(java.lang.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.

### getChecksumAlgorithms

    public java.lang.String[] getChecksumAlgorithms()

### setChecksums

    public void setChecksums(java.lang.String checksums)

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