[tika] branch main updated: add convenience methods to FetcherManager and EmitterManager to get the one fetcher/emitter if only one is specified.

[ta...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

tallison pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/tika.git


The following commit(s) were added to refs/heads/main by this push:
     new 1bee087c2 add convenience methods to FetcherManager and EmitterManager to get the one fetcher/emitter if only one is specified.
1bee087c2 is described below

commit 1bee087c230fe364d002c23394c600a3ee89c5c2
Author: tballison <ta...@apache.org>
AuthorDate: Fri Aug 5 17:22:14 2022 -0400

    add convenience methods to FetcherManager and EmitterManager to get the one fetcher/emitter if only one is specified.
---
 .../apache/tika/pipes/emitter/EmitterManager.java   | 21 +++++++++++++++++++++
 .../apache/tika/pipes/fetcher/FetcherManager.java   | 21 +++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/tika-core/src/main/java/org/apache/tika/pipes/emitter/EmitterManager.java b/tika-core/src/main/java/org/apache/tika/pipes/emitter/EmitterManager.java
index fee9df4e1..7d1aba1cf 100644
--- a/tika-core/src/main/java/org/apache/tika/pipes/emitter/EmitterManager.java
+++ b/tika-core/src/main/java/org/apache/tika/pipes/emitter/EmitterManager.java
@@ -74,4 +74,25 @@ public class EmitterManager extends ConfigBase {
         }
         return emitter;
     }
+
+    /**
+     * Convenience method that returns an emitter if only one emitter
+     * is specified in the tika-config file.  If 0 or > 1 emitters
+     * are specified, this throws an IllegalArgumentException.
+     * @return
+     */
+    public Emitter getEmitter() {
+        if (emitterMap.size() == 0) {
+            throw new IllegalArgumentException("emitters size must == 1 for the no arg call");
+        }
+        if (emitterMap.size() > 1) {
+            throw new IllegalArgumentException("need to specify 'emitterName' if > 1 emitters are" +
+                    " available");
+        }
+        for (Emitter emitter : emitterMap.values()) {
+            return emitter;
+        }
+        //this should be unreachable?!
+        throw new IllegalArgumentException("emitters size must == 0");
+    }
 }
diff --git a/tika-core/src/main/java/org/apache/tika/pipes/fetcher/FetcherManager.java b/tika-core/src/main/java/org/apache/tika/pipes/fetcher/FetcherManager.java
index 2d9382541..40121f9a7 100644
--- a/tika-core/src/main/java/org/apache/tika/pipes/fetcher/FetcherManager.java
+++ b/tika-core/src/main/java/org/apache/tika/pipes/fetcher/FetcherManager.java
@@ -72,4 +72,25 @@ public class FetcherManager extends ConfigBase {
     public Set<String> getSupported() {
         return fetcherMap.keySet();
     }
+
+    /**
+     * Convenience method that returns a fetcher if only one fetcher
+     * is specified in the tika-config file.  If 0 or > 1 fetchers
+     * are specified, this throws an IllegalArgumentException.
+     * @return
+     */
+    public Fetcher getFetcher() {
+        if (fetcherMap.size() == 0) {
+            throw new IllegalArgumentException("fetchers size must == 1 for the no arg call");
+        }
+        if (fetcherMap.size() > 1) {
+            throw new IllegalArgumentException("need to specify 'fetcherName' if > 1 fetchers are" +
+                    " available");
+        }
+        for (Fetcher fetcher : fetcherMap.values()) {
+            return fetcher;
+        }
+        //this should be unreachable?!
+        throw new IllegalArgumentException("fetchers size must == 0");
+    }
 }