03ab36149e
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat
78 lines
2.6 KiB
Markdown
78 lines
2.6 KiB
Markdown
# 1. Goal
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A laboratory receives blood samples. Each sample has a sample ID, a test type and a
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priority. The laboratory groups the samples into batches. One batch belongs to each
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test type. A laboratory program adds the samples one by one. Then it reads the
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batches.
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Create the class {{P}}SAMPLE_BATCHER. The class collects the samples and gives the
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batches.
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# 2. Open questions
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None.
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# 3. Context
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- The class is new. It is in package $TMP.
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- No other object is necessary.
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- A laboratory program creates one instance of the class. It adds all samples of a
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shift. Then it reads the batches.
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# 4. Contract
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Class {{P}}SAMPLE_BATCHER. The class is public and final. It can be created without
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parameters.
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Public types:
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- ty_test_type TYPE c LENGTH 4
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- ty_sample_id TYPE c LENGTH 10
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- ty_priority TYPE i
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- ty_batch with the components test_type (TYPE ty_test_type), total (TYPE i) and
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urgent (TYPE i)
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- tt_batches TYPE STANDARD TABLE OF ty_batch WITH EMPTY KEY
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Public methods:
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- add_sample
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IMPORTING iv_sample_id TYPE ty_sample_id
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iv_test_type TYPE ty_test_type
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iv_priority TYPE ty_priority
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RETURNING VALUE(rv_added) TYPE abap_bool
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- get_batches
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RETURNING VALUE(rt_batches) TYPE tt_batches
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- get_batch
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IMPORTING iv_test_type TYPE ty_test_type
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RETURNING VALUE(rs_batch) TYPE ty_batch
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Do not add other public methods.
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# 5. Business rules
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add_sample
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1. Normalize the sample ID and the test type. Remove all spaces. Convert all letters
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to upper case.
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2. Reject the sample and return abap_false if one of these conditions is true:
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- the normalized sample ID is empty, or
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- the normalized test type is empty, or
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- the priority is not 1, 2 or 3, or
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- the normalized sample ID was already added.
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The state of the object does not change.
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3. Else accept the sample and return abap_true. The batch of the test type gets one
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more sample. If the priority is 1, the batch also gets one more urgent sample.
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get_batches
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4. Return one row for each test type that has at least one sample.
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5. Sort the rows by the test type in ascending order.
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get_batch
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6. Normalize the test type in the same way as in rule 1.
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7. If the test type has at least one sample, return its row.
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8. Else return a row with this test type, total = 0 and urgent = 0.
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# 6. Constraints
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- Release target: 8.16.
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- Coding standards: Clean ABAP. Methods below 40 statements. No global variables. No
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comment that restates the code.
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- Out of scope: no other object is part of this task.
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# 7. Acceptance
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- The class is active and has no syntax error.
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- The hidden tests pass.
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- Write your own ABAP Unit tests for the class.
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